diff --git a/ydb/core/viewer/json_handlers.h b/ydb/core/viewer/json_handlers.h
index 526c671d0136..20f5bb986381 100644
--- a/ydb/core/viewer/json_handlers.h
+++ b/ydb/core/viewer/json_handlers.h
@@ -74,7 +74,7 @@ struct TJsonHandlers {
                 json << ',';
             }
             TString name = itJson->first;
-            json << "\"/" << name << '"' << ":{";
+            json << "\"/viewer" << name << '"' << ":{";
                 json << "\"get\":{";
                     json << "\"tags\":[\"" << TTagInfo::TagName << "\"],";
                     json << "\"produces\":[\"application/json\"],";
diff --git a/ydb/core/viewer/json_whoami.h b/ydb/core/viewer/json_whoami.h
index c0033c94b374..2720108b1e2e 100644
--- a/ydb/core/viewer/json_whoami.h
+++ b/ydb/core/viewer/json_whoami.h
@@ -1,6 +1,8 @@
 #pragma once
 #include <ydb/library/actors/core/actor_bootstrapped.h>
 #include <ydb/library/actors/core/mon.h>
+#include <library/cpp/json/json_value.h>
+#include <library/cpp/json/json_writer.h>
 #include <ydb/core/base/tablet_pipe.h>
 #include <ydb/library/services/services.pb.h>
 #include <ydb/core/tx/schemeshard/schemeshard.h>
@@ -14,7 +16,6 @@ using namespace NActors;
 
 class TJsonWhoAmI : public TActorBootstrapped<TJsonWhoAmI> {
     IViewer* Viewer;
-    TJsonSettings JsonSettings;
     NMon::TEvHttpInfo::TPtr Event;
 
 public:
@@ -28,18 +29,48 @@ class TJsonWhoAmI : public TActorBootstrapped<TJsonWhoAmI> {
     {}
 
     void Bootstrap(const TActorContext& ctx) {
-        const auto& params(Event->Get()->Request.GetParams());
-        JsonSettings.EnumAsNumbers = !FromStringWithDefault<bool>(params.Get("enums"), false);
-        JsonSettings.UI64AsString = !FromStringWithDefault<bool>(params.Get("ui64"), false);
         ReplyAndDie(ctx);
     }
 
+    bool CheckGroupMembership(std::unique_ptr<NACLib::TUserToken>& token, const NProtoBuf::RepeatedPtrField<TString>& sids) {
+        if (sids.empty()) {
+            return true;
+        }
+        for (const auto& sid : sids) {
+            if (token->IsExist(sid)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     void ReplyAndDie(const  TActorContext &ctx) {
         NACLibProto::TUserToken userToken;
         Y_PROTOBUF_SUPPRESS_NODISCARD userToken.ParseFromString(Event->Get()->UserToken);
-        TStringStream json;
-        TProtoToJson::ProtoToJson(json, userToken, JsonSettings);
-        ctx.Send(Event->Sender, new NMon::TEvHttpInfoRes(Viewer->GetHTTPOKJSON(Event->Get()) + json.Str(), 0, NMon::IEvHttpInfoRes::EContentType::Custom));
+        NJson::TJsonValue json(NJson::JSON_MAP);
+        if (userToken.HasUserSID()) {
+            json["UserSID"] = userToken.GetUserSID();
+        }
+        if (userToken.HasGroupSIDs() && userToken.GetGroupSIDs().BucketsSize() > 0) {
+            NJson::TJsonValue& groupSIDs(json["GroupSIDs"]);
+            groupSIDs.SetType(NJson::JSON_ARRAY);
+            for (const auto& buckets : userToken.GetGroupSIDs().GetBuckets()) {
+                for (const auto& group : buckets.GetValues()) {
+                    groupSIDs.AppendValue(group);
+                }
+            }
+        }
+        if (userToken.HasOriginalUserToken()) {
+            json["OriginalUserToken"] = userToken.GetOriginalUserToken();
+        }
+        if (userToken.HasAuthType()) {
+            json["AuthType"] = userToken.GetAuthType();
+        }
+        auto token = std::make_unique<NACLib::TUserToken>(userToken);
+        json["IsViewerAllowed"] = CheckGroupMembership(token, AppData()->DomainsConfig.GetSecurityConfig().GetViewerAllowedSIDs());
+        json["IsMonitoringAllowed"] = CheckGroupMembership(token, AppData()->DomainsConfig.GetSecurityConfig().GetMonitoringAllowedSIDs());
+        json["IsAdministrationAllowed"] = CheckGroupMembership(token, AppData()->DomainsConfig.GetSecurityConfig().GetAdministrationAllowedSIDs());
+        ctx.Send(Event->Sender, new NMon::TEvHttpInfoRes(Viewer->GetHTTPOKJSON(Event->Get()) + NJson::WriteJson(json, false), 0, NMon::IEvHttpInfoRes::EContentType::Custom));
         Die(ctx);
     }
 
@@ -52,17 +83,52 @@ class TJsonWhoAmI : public TActorBootstrapped<TJsonWhoAmI> {
 template <>
 struct TJsonRequestSchema<TJsonWhoAmI> {
     static TString GetSchema() {
-        TStringStream stream;
-        TProtoToJson::ProtoToJsonSchema<NACLibProto::TUserToken>(stream);
-        return stream.Str();
+        return R"___(
+            {
+                "type": "object",
+                "title": "WhoAmI",
+                "properties": {
+                    "UserSID": {
+                        "type": "string",
+                        "description": "User ID / name"
+                    },
+                    "GroupSID": {
+                        "type": "array",
+                        "items": {
+                            "type": "string"
+                        },
+                        "description": "User groups"
+                    },
+                    "OriginalUserToken": {
+                        "type": "string",
+                        "description": "User's token used to authenticate"
+                    },
+                    "AuthType": {
+                        "type": "string",
+                        "description": "Authentication type"
+                    },
+                    "IsViewerAllowed": {
+                        "type": "boolean",
+                        "description": "Is user allowed to view data"
+                    },
+                    "IsMonitoringAllowed": {
+                        "type": "boolean",
+                        "description": "Is user allowed to view deeper and make simple changes"
+                    },
+                    "IsAdministrationAllowed": {
+                        "type": "boolean",
+                        "description": "Is user allowed to do unrestricted changes in the system"
+                    }
+                }
+            }
+            )___";
     }
 };
 
 template <>
 struct TJsonRequestParameters<TJsonWhoAmI> {
     static TString GetParameters() {
-        return R"___([{"name":"enums","in":"query","description":"convert enums to strings","required":false,"type":"boolean"},
-                      {"name":"ui64","in":"query","description":"return ui64 as numbers","required":false,"type":"boolean"}])___";
+        return "[]";
     }
 };
 
diff --git a/ydb/library/yql/minikql/computation/mkql_block_reader.cpp b/ydb/library/yql/minikql/computation/mkql_block_reader.cpp
index e417fcf535de..ee2864cc231f 100644
--- a/ydb/library/yql/minikql/computation/mkql_block_reader.cpp
+++ b/ydb/library/yql/minikql/computation/mkql_block_reader.cpp
@@ -195,6 +195,37 @@ class TTupleBlockItemConverter : public IBlockItemConverter {
     mutable TVector<TBlockItem> Items;
 };
 
+template <typename TTzDate, bool Nullable>
+class TTzDateBlockItemConverter : public IBlockItemConverter {
+public:
+    using TLayout = typename NYql::NUdf::TDataType<TTzDate>::TLayout;
+
+    NUdf::TUnboxedValuePod MakeValue(TBlockItem item, const THolderFactory& holderFactory) const final {
+        Y_UNUSED(holderFactory);
+        if constexpr (Nullable) {
+            if (!item) {
+                return {};
+            }
+        }
+
+        NUdf::TUnboxedValuePod value {item.Get<TLayout>()};
+        value.SetTimezoneId(item.GetTimezoneId());
+        return value;
+    }
+
+    TBlockItem MakeItem(const NUdf::TUnboxedValuePod& value) const final {
+        if constexpr (Nullable) {
+            if (!value) {
+                return {};
+            }
+        }
+
+        TBlockItem item {value.Get<TLayout>()};
+        item.SetTimezoneId(value.GetTimezoneId());
+        return item;
+    }
+};
+
 class TExternalOptionalBlockItemConverter : public IBlockItemConverter {
 public:
     TExternalOptionalBlockItemConverter(std::unique_ptr<IBlockItemConverter>&& inner)
@@ -229,6 +260,8 @@ struct TConverterTraits {
     template <typename TStringType, bool Nullable, NUdf::EDataSlot TOriginal = NUdf::EDataSlot::String, NUdf::EPgStringType PgString = NUdf::EPgStringType::None>
     using TStrings = TStringBlockItemConverter<TStringType, Nullable, PgString>;
     using TExtOptional = TExternalOptionalBlockItemConverter;
+    template<typename TTzDate, bool Nullable>
+    using TTzDateConverter = TTzDateBlockItemConverter<TTzDate, Nullable>;
 
     static std::unique_ptr<TResult> MakePg(const NUdf::TPgTypeDescription& desc, const NUdf::IPgBuilder* pgBuilder) {
         if (desc.PassByValue) {
@@ -258,6 +291,15 @@ struct TConverterTraits {
             return std::make_unique<TResourceBlockItemConverter<false>>();
         }
     }
+
+    template<typename TTzDate>
+    static std::unique_ptr<TResult> MakeTzDate(bool isOptional) {
+        if (isOptional) {
+            return std::make_unique<TTzDateConverter<TTzDate, true>>();
+        } else {
+            return std::make_unique<TTzDateConverter<TTzDate, false>>();
+        }
+    }
 };
 
 } // namespace
diff --git a/ydb/library/yql/minikql/computation/mkql_block_transport.cpp b/ydb/library/yql/minikql/computation/mkql_block_transport.cpp
index cd7a9a60cf01..e9700ed43995 100644
--- a/ydb/library/yql/minikql/computation/mkql_block_transport.cpp
+++ b/ydb/library/yql/minikql/computation/mkql_block_transport.cpp
@@ -150,7 +150,7 @@ class TBlockDeserializerBase : public IBlockDeserializer {
         DoResetMetadata();
     }
 
-    std::shared_ptr<arrow::ArrayData> MakeDefaultValue(ui64 blockLen, ui64 offset) {
+    std::shared_ptr<arrow::ArrayData> MakeDefaultValue(ui64 blockLen, ui64 offset) const {
         std::shared_ptr<arrow::Buffer> nulls;
         i64 nullsCount = 0;
         if (IsNullable()) {
@@ -176,7 +176,7 @@ template<size_t ObjectSize, bool Nullable>
 class TFixedSizeBlockSerializer final : public IBlockSerializer {
 public:
     TFixedSizeBlockSerializer() = default;
-private:
+
     size_t ArrayMetadataCount() const final {
         return Nullable ? 3 : 1;
     }
@@ -389,16 +389,10 @@ class TExtOptionalBlockDeserializer final : public TBlockDeserializerBase {
     const std::unique_ptr<TBlockDeserializerBase> Inner_;
 };
 
-template<bool Nullable>
-class TTupleBlockSerializer final : public IBlockSerializer {
-public:
-    explicit TTupleBlockSerializer(TVector<std::unique_ptr<IBlockSerializer>>&& children)
-        : Children_(std::move(children))
-    {
-    }
-private:
+template<bool Nullable, typename TDerived>
+class TTupleBlockSerializerBase : public IBlockSerializer {
     size_t ArrayMetadataCount() const final {
-        size_t result = GetChildMetaCount();
+        size_t result = static_cast<const TDerived*>(this)->GetChildrenMetaCount();
         if constexpr (Nullable) {
             result += 2;
         }
@@ -410,14 +404,12 @@ class TTupleBlockSerializer final : public IBlockSerializer {
             StoreNullsSizes(data, metaSink);
         }
         if (data.GetNullCount() == data.length) {
-            auto childCount = GetChildMetaCount();
+            auto childCount = static_cast<const TDerived*>(this)->GetChildrenMetaCount();
             for (size_t i = 0; i < childCount; ++i) {
                 metaSink(0);
             }
         } else {
-            for (size_t i = 0; i < Children_.size(); ++i) {
-                Children_[i]->StoreMetadata(*data.child_data[i], metaSink);
-            }
+            static_cast<const TDerived*>(this)->StoreChildrenMetadata(data.child_data, metaSink);
         }
     }
 
@@ -426,13 +418,19 @@ class TTupleBlockSerializer final : public IBlockSerializer {
             StoreNulls(data, dst);
         }
         if (data.GetNullCount() != data.length) {
-            for (size_t i = 0; i < Children_.size(); ++i) {
-                Children_[i]->StoreArray(*data.child_data[i], dst);
-            }
+            static_cast<const TDerived*>(this)->StoreChildrenArrays(data.child_data, dst);
         }
     }
+};
+
+template<bool Nullable>
+class TTupleBlockSerializer final : public TTupleBlockSerializerBase<Nullable, TTupleBlockSerializer<Nullable>> {
+public:
+    TTupleBlockSerializer(TVector<std::unique_ptr<IBlockSerializer>>&& children)
+        : Children_(std::move(children))
+    {}
 
-    size_t GetChildMetaCount() const {
+    size_t GetChildrenMetaCount() const {
         size_t result = 0;
         for (const auto& child : Children_) {
             result += child->ArrayMetadataCount();
@@ -440,9 +438,51 @@ class TTupleBlockSerializer final : public IBlockSerializer {
         return result;
     }
 
+    void StoreChildrenMetadata(const std::vector<std::shared_ptr<arrow::ArrayData>>& child_data, 
+        const IBlockSerializer::TMetadataSink& metaSink) const {
+
+        for (size_t i = 0; i < Children_.size(); ++i) {
+            Children_[i]->StoreMetadata(*child_data[i], metaSink);
+        }
+    }
+
+    void StoreChildrenArrays(const std::vector<std::shared_ptr<arrow::ArrayData>>& child_data, TRope& dst) const {
+        for (size_t i = 0; i < Children_.size(); ++i) {
+            Children_[i]->StoreArray(*child_data[i], dst);
+        }
+    }
+
+private:
     const TVector<std::unique_ptr<IBlockSerializer>> Children_;
 };
 
+template<typename TDate, bool Nullable>
+class TTzDateBlockSerializer final : public TTupleBlockSerializerBase<Nullable, TTzDateBlockSerializer<TDate, Nullable>> {
+public:
+    TTzDateBlockSerializer() = default;
+
+    size_t GetChildrenMetaCount() const {
+        return DateSerialiser_.ArrayMetadataCount() + TzSerialiser_.ArrayMetadataCount();
+    }
+
+    void StoreChildrenMetadata(const std::vector<std::shared_ptr<arrow::ArrayData>>& child_data, 
+        const IBlockSerializer::TMetadataSink& metaSink) const {
+        DateSerialiser_.StoreMetadata(*child_data[0], metaSink);
+        TzSerialiser_.StoreMetadata(*child_data[1], metaSink);
+    }
+
+    void StoreChildrenArrays(const std::vector<std::shared_ptr<arrow::ArrayData>>& child_data, TRope& dst) const {
+        DateSerialiser_.StoreArray(*child_data[0], dst);
+        TzSerialiser_.StoreArray(*child_data[1], dst);
+    }
+
+private:
+    using TDateLayout = typename NUdf::TDataType<TDate>::TLayout;
+
+    TFixedSizeBlockSerializer<sizeof(TDateLayout), false> DateSerialiser_;
+    TFixedSizeBlockSerializer<sizeof(NYql::NUdf::TTimezoneId), false> TzSerialiser_;
+};
+
 template<bool Nullable>
 class TTupleBlockDeserializer final : public TBlockDeserializerBase {
 public:
@@ -494,6 +534,53 @@ class TTupleBlockDeserializer final : public TBlockDeserializerBase {
     const TVector<std::unique_ptr<TBlockDeserializerBase>> Children_;
 };
 
+template<typename TDate, bool Nullable>
+class TTzDateBlockDeserializer final : public TBlockDeserializerBase {
+public:
+    TTzDateBlockDeserializer() = default;
+
+private:
+    void DoLoadMetadata(const TMetadataSource& metaSource) final {
+        DateDeserialiser_.LoadMetadata(metaSource);
+        TzDeserialiser_.LoadMetadata(metaSource);
+    }
+
+    std::shared_ptr<arrow::ArrayData> DoMakeDefaultValue(const std::shared_ptr<arrow::Buffer>& nulls, i64 nullsCount, ui64 blockLen, ui64 offset) const final {
+        std::vector<std::shared_ptr<arrow::ArrayData>> childData;
+        childData.emplace_back(DateDeserialiser_.MakeDefaultValue(blockLen, offset));
+        childData.emplace_back(TzDeserialiser_.MakeDefaultValue(blockLen, offset));
+        return arrow::ArrayData::Make(ArrowType_, blockLen, {nulls}, std::move(childData), nullsCount, offset);
+    }
+
+    std::shared_ptr<arrow::ArrayData> DoLoadArray(TRope& src, const std::shared_ptr<arrow::Buffer>& nulls, i64 nullsCount, ui64 blockLen, ui64 offset) final {
+        std::vector<std::shared_ptr<arrow::ArrayData>> childData;
+        childData.emplace_back(DateDeserialiser_.LoadArray(src, blockLen, offset));
+        childData.emplace_back(TzDeserialiser_.LoadArray(src, blockLen, offset));
+        return arrow::ArrayData::Make(ArrowType_, blockLen, {nulls}, std::move(childData), nullsCount, offset);
+    }
+
+    void DoResetMetadata() final {
+        DateDeserialiser_.ResetMetadata();
+        TzDeserialiser_.ResetMetadata();
+    }
+
+    bool IsNullable() const final {
+        return Nullable;
+    }
+
+    void SetArrowType(const std::shared_ptr<arrow::DataType>& type) final {
+        YQL_ENSURE(type->fields().size() == 2);
+        ArrowType_ = type;
+        DateDeserialiser_.SetArrowType(type->field(0)->type());
+        TzDeserialiser_.SetArrowType(type->field(1)->type());
+    }
+
+    using TDateLayout = typename NUdf::TDataType<TDate>::TLayout;
+
+    TFixedSizeBlockDeserializer<sizeof(TDateLayout), false> DateDeserialiser_;
+    TFixedSizeBlockDeserializer<sizeof(NYql::NUdf::TTimezoneId), false> TzDeserialiser_;
+};
+
 struct TSerializerTraits {
     using TResult = IBlockSerializer;
     template <bool Nullable>
@@ -503,6 +590,9 @@ struct TSerializerTraits {
     template <typename TStringType, bool Nullable, NUdf::EDataSlot TOriginal = NUdf::EDataSlot::String>
     using TStrings = TStringBlockSerializer<TStringType, Nullable>;
     using TExtOptional = TExtOptionalBlockSerializer;
+    template<typename TTzDateType, bool Nullable>
+    using TTzDate = TTzDateBlockSerializer<TTzDateType, Nullable>;
+
 
     static std::unique_ptr<TResult> MakePg(const NUdf::TPgTypeDescription& desc, const NUdf::IPgBuilder* pgBuilder) {
         Y_UNUSED(pgBuilder);
@@ -516,6 +606,16 @@ struct TSerializerTraits {
         Y_UNUSED(isOptional);
         ythrow yexception() << "Serializer not implemented for block resources";
     }
+
+    template<typename TTzDateType>
+    static std::unique_ptr<TResult> MakeTzDate(bool isOptional) {
+        if (isOptional) {
+            return std::make_unique<TTzDate<TTzDateType, true>>();
+        }
+        else {
+            return std::make_unique<TTzDate<TTzDateType, false>>();
+        }
+    }
 };
 
 struct TDeserializerTraits {
@@ -527,6 +627,8 @@ struct TDeserializerTraits {
     template <typename TStringType, bool Nullable, NUdf::EDataSlot TOriginal = NUdf::EDataSlot::String>
     using TStrings = TStringBlockDeserializer<TStringType, Nullable>;
     using TExtOptional = TExtOptionalBlockDeserializer;
+    template<typename TTzDateType, bool Nullable>
+    using TTzDate = TTzDateBlockDeserializer<TTzDateType, Nullable>;
 
     static std::unique_ptr<TResult> MakePg(const NUdf::TPgTypeDescription& desc, const NUdf::IPgBuilder* pgBuilder) {
         Y_UNUSED(pgBuilder);
@@ -540,6 +642,16 @@ struct TDeserializerTraits {
         Y_UNUSED(isOptional);
         ythrow yexception() << "Deserializer not implemented for block resources";
     }
+
+    template<typename TTzDateType>
+    static std::unique_ptr<TResult> MakeTzDate(bool isOptional) {
+        if (isOptional) {
+            return std::make_unique<TTzDate<TTzDateType, true>>();
+        }
+        else {
+            return std::make_unique<TTzDate<TTzDateType, false>>();
+        }
+    }
 };
 
 } // namespace
diff --git a/ydb/library/yql/minikql/computation/mkql_computation_node_pack_ut.cpp b/ydb/library/yql/minikql/computation/mkql_computation_node_pack_ut.cpp
index 3e0e7117c41f..ea4802cd6768 100644
--- a/ydb/library/yql/minikql/computation/mkql_computation_node_pack_ut.cpp
+++ b/ydb/library/yql/minikql/computation/mkql_computation_node_pack_ut.cpp
@@ -665,6 +665,9 @@ class TMiniKQLComputationNodePackTest: public TTestBase {
             auto scalarOptStrType = PgmBuilder.NewBlockType(optStrType, TBlockType::EShape::Scalar);
             auto blockOptTupleOptUi32StrType = PgmBuilder.NewBlockType(optTupleOptUi32StrType, TBlockType::EShape::Many);
             auto scalarUi64Type = PgmBuilder.NewBlockType(ui64Type, TBlockType::EShape::Scalar);
+            
+            auto tzDateType = PgmBuilder.NewDataType(NUdf::EDataSlot::TzDate);
+            auto blockTzDateType = PgmBuilder.NewBlockType(tzDateType, TBlockType::EShape::Many);
 
             auto rowType =
                 legacyStruct
@@ -674,10 +677,11 @@ class TMiniKQLComputationNodePackTest: public TTestBase {
                           {"_yql_block_length", scalarUi64Type},
                           {"a", scalarOptStrType},
                           {"b", blockOptTupleOptUi32StrType},
+                          {"c", blockTzDateType}
                       })
                     : PgmBuilder.NewMultiType(
                           {blockUi32Type, blockOptStrType, scalarOptStrType,
-                           blockOptTupleOptUi32StrType, scalarUi64Type});
+                           blockOptTupleOptUi32StrType, blockTzDateType, scalarUi64Type});
 
             ui64 blockLen = 1000;
             UNIT_ASSERT_LE(offset + len, blockLen);
@@ -685,6 +689,7 @@ class TMiniKQLComputationNodePackTest: public TTestBase {
             auto builder1 = MakeArrayBuilder(TTypeInfoHelper(), ui32Type, *ArrowPool_, CalcBlockLen(CalcMaxBlockItemSize(ui32Type)), nullptr);
             auto builder2 = MakeArrayBuilder(TTypeInfoHelper(), optStrType, *ArrowPool_, CalcBlockLen(CalcMaxBlockItemSize(optStrType)), nullptr);
             auto builder3 = MakeArrayBuilder(TTypeInfoHelper(), optTupleOptUi32StrType, *ArrowPool_, CalcBlockLen(CalcMaxBlockItemSize(optTupleOptUi32StrType)), nullptr);
+            auto builder4 = MakeArrayBuilder(TTypeInfoHelper(), tzDateType, *ArrowPool_, CalcBlockLen(CalcMaxBlockItemSize(tzDateType)), nullptr);
 
             for (ui32 i = 0; i < blockLen; ++i) {
                 TBlockItem b1(i);
@@ -697,6 +702,10 @@ class TMiniKQLComputationNodePackTest: public TTestBase {
                 TBlockItem b3items[] = { (i % 2) ? TBlockItem(i) : TBlockItem(), TBlockItem(a) };
                 TBlockItem b3 = (i % 7) ? TBlockItem(b3items) : TBlockItem();
                 builder3->Add(b3);
+                
+                TBlockItem tzDate {i};
+                tzDate.SetTimezoneId(i % 100);
+                builder4->Add(tzDate);
             }
 
             std::string_view testScalarString = "foobar";
@@ -709,11 +718,13 @@ class TMiniKQLComputationNodePackTest: public TTestBase {
                 datums.emplace_back(arrow::Datum(std::make_shared<arrow::UInt64Scalar>(blockLen)));
                 datums.emplace_back(arrow::Datum(std::make_shared<arrow::BinaryScalar>(strbuf)));
                 datums.emplace_back(builder3->Build(true));
+                datums.emplace_back(builder4->Build(true));
             } else {
                 datums.emplace_back(builder1->Build(true));
                 datums.emplace_back(builder2->Build(true));
                 datums.emplace_back(arrow::Datum(std::make_shared<arrow::BinaryScalar>(strbuf)));
                 datums.emplace_back(builder3->Build(true));
+                datums.emplace_back(builder4->Build(true));
                 datums.emplace_back(arrow::Datum(std::make_shared<arrow::UInt64Scalar>(blockLen)));
             }
 
@@ -767,6 +778,7 @@ class TMiniKQLComputationNodePackTest: public TTestBase {
             auto reader1 = MakeBlockReader(TTypeInfoHelper(), ui32Type);
             auto reader2 = MakeBlockReader(TTypeInfoHelper(), optStrType);
             auto reader3 = MakeBlockReader(TTypeInfoHelper(), optTupleOptUi32StrType);
+            auto reader4 = MakeBlockReader(TTypeInfoHelper(), tzDateType);
 
             for (ui32 i = offset; i < len; ++i) {
                 TBlockItem b1 = reader1->GetItem(*TArrowBlock::From(unpackedColumns[0]).GetDatum().array(), i - offset);
@@ -792,6 +804,10 @@ class TMiniKQLComputationNodePackTest: public TTestBase {
                 } else {
                     UNIT_ASSERT(!b3);
                 }
+
+                TBlockItem b4 = reader4->GetItem(*TArrowBlock::From(unpackedColumns[legacyStruct ? 5 : 4]).GetDatum().array(), i - offset);
+                UNIT_ASSERT(b4.Get<ui16>() == i);
+                UNIT_ASSERT(b4.GetTimezoneId() == (i % 100));
             }
         }
     }
diff --git a/ydb/library/yql/minikql/datetime/datetime.h b/ydb/library/yql/minikql/datetime/datetime.h
index 71363b27cdf3..a86f28060cf0 100644
--- a/ydb/library/yql/minikql/datetime/datetime.h
+++ b/ydb/library/yql/minikql/datetime/datetime.h
@@ -21,6 +21,7 @@ struct TTMStorage {
     unsigned int Second : 6;
     unsigned int Microsecond : 20;
     unsigned int TimezoneId : 16;
+    ui8 Reserved[2];
 
     TTMStorage() {
         Zero(*this);
diff --git a/ydb/library/yql/minikql/mkql_type_builder.cpp b/ydb/library/yql/minikql/mkql_type_builder.cpp
index dc946c432278..38e536688e15 100644
--- a/ydb/library/yql/minikql/mkql_type_builder.cpp
+++ b/ydb/library/yql/minikql/mkql_type_builder.cpp
@@ -1455,9 +1455,28 @@ bool ConvertArrowType(NUdf::EDataSlot slot, std::shared_ptr<arrow::DataType>& ty
     case NUdf::EDataSlot::Json:
         type = arrow::utf8();
         return true;
-    default:
+    case NUdf::EDataSlot::TzDate: {
+        type = MakeTzDateArrowType<NYql::NUdf::EDataSlot::TzDate>();
+        return true;
+    }
+    case NUdf::EDataSlot::TzDatetime: {
+        type = MakeTzDateArrowType<NYql::NUdf::EDataSlot::TzDatetime>();
+        return true;
+    }
+    case NUdf::EDataSlot::TzTimestamp: {
+        type = MakeTzDateArrowType<NYql::NUdf::EDataSlot::TzTimestamp>();
+        return true;
+    }
+    case NUdf::EDataSlot::Uuid: {
         return false;
     }
+    case NUdf::EDataSlot::Decimal: {
+        return false;
+    }
+    case NUdf::EDataSlot::DyNumber: {
+        return false;
+    }
+    }
 }
 
 bool ConvertArrowType(TType* itemType, std::shared_ptr<arrow::DataType>& type) {
@@ -2415,9 +2434,22 @@ size_t CalcMaxBlockItemSize(const TType* type) {
         case NUdf::EDataSlot::Json:
             // size of offset part
             return sizeof(arrow::StringType::offset_type);
-        default:
+        case NUdf::EDataSlot::TzDate:
+            return sizeof(typename NUdf::TDataType<NUdf::TTzDate>::TLayout) + sizeof(NYql::NUdf::TTimezoneId);
+        case NUdf::EDataSlot::TzDatetime:
+            return sizeof(typename NUdf::TDataType<NUdf::TTzDatetime>::TLayout) + sizeof(NYql::NUdf::TTimezoneId);
+        case NUdf::EDataSlot::TzTimestamp:
+            return sizeof(typename NUdf::TDataType<NUdf::TTzTimestamp>::TLayout) + sizeof(NYql::NUdf::TTimezoneId);
+        case NUdf::EDataSlot::Uuid: {
             MKQL_ENSURE(false, "Unsupported data slot: " << slot);
         }
+        case NUdf::EDataSlot::Decimal: {
+            MKQL_ENSURE(false, "Unsupported data slot: " << slot);
+        }
+        case NUdf::EDataSlot::DyNumber: {
+            MKQL_ENSURE(false, "Unsupported data slot: " << slot);
+        }
+        }
     }
 
     MKQL_ENSURE(false, "Unsupported type: " << *type);
@@ -2432,6 +2464,8 @@ struct TComparatorTraits {
     template <typename TStringType, bool Nullable, NUdf::EDataSlot TOriginal = NUdf::EDataSlot::String>
     using TStrings = NUdf::TStringBlockItemComparator<TStringType, Nullable>;
     using TExtOptional = NUdf::TExternalOptionalBlockItemComparator;
+    template <typename T, bool Nullable>
+    using TTzDateComparator = NUdf::TTzDateBlockItemComparator<T, Nullable>;
 
     static std::unique_ptr<TResult> MakePg(const NUdf::TPgTypeDescription& desc, const NUdf::IPgBuilder* pgBuilder) {
         Y_UNUSED(pgBuilder);
@@ -2442,6 +2476,15 @@ struct TComparatorTraits {
         Y_UNUSED(isOptional);
         ythrow yexception() << "Comparator not implemented for block resources: ";
     }
+
+    template<typename TTzDate>
+    static std::unique_ptr<TResult> MakeTzDate(bool isOptional) {
+        if (isOptional) {
+            return std::make_unique<TTzDateComparator<TTzDate, true>>();
+        } else {
+            return std::make_unique<TTzDateComparator<TTzDate, false>>();
+        }
+    }
 };
 
 struct THasherTraits {
@@ -2453,6 +2496,8 @@ struct THasherTraits {
     template <typename TStringType, bool Nullable, NUdf::EDataSlot TOriginal = NUdf::EDataSlot::String>
     using TStrings = NUdf::TStringBlockItemHasher<TStringType, Nullable>;
     using TExtOptional = NUdf::TExternalOptionalBlockItemHasher;
+    template <typename T, bool Nullable>
+    using TTzDateHasher = NYql::NUdf::TTzDateBlockItemHasher<T, Nullable>;
 
     static std::unique_ptr<TResult> MakePg(const NUdf::TPgTypeDescription& desc, const NUdf::IPgBuilder* pgBuilder) {
         Y_UNUSED(pgBuilder);
@@ -2463,6 +2508,15 @@ struct THasherTraits {
         Y_UNUSED(isOptional);
         ythrow yexception() << "Hasher not implemented for block resources";
     }
+    
+    template<typename TTzDate>
+    static std::unique_ptr<TResult> MakeTzDate(bool isOptional) {
+        if (isOptional) {
+            return std::make_unique<TTzDateHasher<TTzDate, true>>();
+        } else {
+            return std::make_unique<TTzDateHasher<TTzDate, false>>();
+        }
+    }
 };
 
 NUdf::IBlockItemComparator::TPtr TBlockTypeHelper::MakeComparator(NUdf::TType* type) const {
diff --git a/ydb/library/yql/minikql/mkql_type_builder.h b/ydb/library/yql/minikql/mkql_type_builder.h
index 2b234d7ee757..7199bc836057 100644
--- a/ydb/library/yql/minikql/mkql_type_builder.h
+++ b/ydb/library/yql/minikql/mkql_type_builder.h
@@ -33,6 +33,31 @@ inline size_t CalcBlockLen(size_t maxBlockItemSize) {
 bool ConvertArrowType(TType* itemType, std::shared_ptr<arrow::DataType>& type);
 bool ConvertArrowType(NUdf::EDataSlot slot, std::shared_ptr<arrow::DataType>& type);
 
+template<NUdf::EDataSlot slot>
+std::shared_ptr<arrow::DataType> MakeTzLayoutArrowType() {
+    static_assert(slot == NUdf::EDataSlot::TzDate || slot == NUdf::EDataSlot::TzDatetime || slot == NUdf::EDataSlot::TzTimestamp, 
+        "Expected tz date type slot");
+
+    if constexpr (slot == NUdf::EDataSlot::TzDate) {
+        return arrow::uint16();
+    }
+    if constexpr (slot == NUdf::EDataSlot::TzDatetime) {
+        return arrow::uint32();
+    }
+    if constexpr (slot == NUdf::EDataSlot::TzTimestamp) {
+        return arrow::uint64();
+    }
+}
+
+template<NUdf::EDataSlot slot>
+std::shared_ptr<arrow::StructType> MakeTzDateArrowType() {
+    std::vector<std::shared_ptr<arrow::Field>> fields {
+        std::make_shared<arrow::Field>("datetime", MakeTzLayoutArrowType<slot>()),
+        std::make_shared<arrow::Field>("timezoneId", arrow::uint16()),
+    };
+    return std::make_shared<arrow::StructType>(fields);
+}
+
 class TArrowType : public NUdf::IArrowType {
 public:
     TArrowType(const std::shared_ptr<arrow::DataType>& type)
diff --git a/ydb/library/yql/providers/yt/comp_nodes/dq/arrow_converter.cpp b/ydb/library/yql/providers/yt/comp_nodes/dq/arrow_converter.cpp
index c273fc0eac49..f1b7e0384754 100644
--- a/ydb/library/yql/providers/yt/comp_nodes/dq/arrow_converter.cpp
+++ b/ydb/library/yql/providers/yt/comp_nodes/dq/arrow_converter.cpp
@@ -5,6 +5,7 @@
 #include <ydb/library/yql/public/udf/arrow/block_reader.h>
 #include <ydb/library/yql/utils/yql_panic.h>
 #include <ydb/library/yql/minikql/mkql_type_builder.h>
+#include <ydb/library/yql/minikql/mkql_type_ops.h>
 
 #include <library/cpp/yson/node/node_io.h>
 #include <library/cpp/yson/detail.h>
@@ -155,6 +156,10 @@ class TYsonReaderDetails {
     const char* Data() {
         return Data_;
     }
+    
+    size_t Available() const {
+        return Available_;
+    }
 private:
     const char* Data_;
     size_t Available_;
@@ -314,9 +319,41 @@ class TYsonStringBlockReader final : public IYsonBlockReaderWithNativeFlag<Nativ
             return ReadYson(buf);
         }
     }
-private:
-    const TVector<std::unique_ptr<IYsonBlockReader>> Children_;
-    TVector<NUdf::TBlockItem> Items_;
+};
+
+template<typename T, bool Nullable, bool Native>
+class TYsonTzDateBlockReader final : public IYsonBlockReaderWithNativeFlag<Native> {
+public:
+    NUdf::TBlockItem GetItem(TYsonReaderDetails& buf) override final {
+        if constexpr (Nullable) {
+            return this->GetNullableItem(buf);
+        }
+        return GetNotNull(buf);
+    }
+
+    NUdf::TBlockItem GetNotNull(TYsonReaderDetails& buf) override final {
+        using TLayout = typename NUdf::TDataType<T>::TLayout;
+        size_t length = sizeof(TLayout) + sizeof(NUdf::TTimezoneId);
+        Y_ASSERT(buf.Available() == length);
+
+        TLayout date;
+        NUdf::TTimezoneId tz;
+
+        if constexpr (std::is_same_v<T, NUdf::TTzDate>) {
+            DeserializeTzDate({buf.Data(), length}, date, tz);
+        } else if constexpr (std::is_same_v<T, NUdf::TTzDatetime>) {
+            DeserializeTzDatetime({buf.Data(), length}, date, tz);
+        } else if constexpr (std::is_same_v<T, NUdf::TTzTimestamp>) {
+            DeserializeTzTimestamp({buf.Data(), length}, date, tz);
+        } else {
+            static_assert(sizeof(T) == 0, "Unsupported tz date type");
+        }
+
+        buf.Skip(length);
+        NUdf::TBlockItem res {date};
+        res.SetTimezoneId(tz);
+        return res;
+    }
 };
 
 namespace {
@@ -374,9 +411,6 @@ class TYsonFixedSizeBlockReader final : public IYsonBlockReaderWithNativeFlag<Na
         buf.Next();
         return NUdf::TBlockItem(T(buf.NextDouble()));
     }
-private:
-    const TVector<std::unique_ptr<IYsonBlockReader>> Children_;
-    TVector<NUdf::TBlockItem> Items_;
 };
 
 template<bool Native>
@@ -439,6 +473,18 @@ struct TYsonBlockReaderTraits {
         Y_UNUSED(isOptional);
         ythrow yexception() << "Yson reader not implemented for block resources";
     }   
+
+    template<typename TTzDate>
+    static std::unique_ptr<TResult> MakeTzDate(bool isOptional) {
+        Y_UNUSED(isOptional);
+        if (isOptional) {
+            using TTzDateReader = TYsonTzDateBlockReader<TTzDate, true, Native>;
+            return std::make_unique<TTzDateReader>();
+        } else {
+            using TTzDateReader = TYsonTzDateBlockReader<TTzDate, false, Native>;
+            return std::make_unique<TTzDateReader>();
+        }
+    }   
 };
 
 template<bool IsDictionary>
diff --git a/ydb/library/yql/public/udf/arrow/block_builder.h b/ydb/library/yql/public/udf/arrow/block_builder.h
index 7c86083ec9d0..10fa0a6f35db 100644
--- a/ydb/library/yql/public/udf/arrow/block_builder.h
+++ b/ydb/library/yql/public/udf/arrow/block_builder.h
@@ -8,6 +8,7 @@
 #include <ydb/library/yql/public/udf/udf_value.h>
 #include <ydb/library/yql/public/udf/udf_value_builder.h>
 #include <ydb/library/yql/public/udf/udf_type_inspection.h>
+#include <ydb/library/yql/minikql/mkql_type_builder.h>
 
 #include <arrow/datum.h>
 #include <arrow/c/bridge.h>
@@ -516,15 +517,16 @@ class TFixedSizeArrayBuilderBase : public TArrayBuilderBase {
 
 template<typename TLayout, bool Nullable>
 class TFixedSizeArrayBuilder final: public TFixedSizeArrayBuilderBase<TLayout, Nullable, TFixedSizeArrayBuilder<TLayout, Nullable>> {
-    using TDerived = TFixedSizeArrayBuilder<TLayout, Nullable>;
+    using TSelf = TFixedSizeArrayBuilder<TLayout, Nullable>;
+    using TBase = TFixedSizeArrayBuilderBase<TLayout, Nullable, TSelf>;
 
 public:
     TFixedSizeArrayBuilder(const ITypeInfoHelper& typeInfoHelper, std::shared_ptr<arrow::DataType> arrowType, arrow::MemoryPool& pool, size_t maxLen, size_t* totalAllocated = nullptr)
-        : TFixedSizeArrayBuilderBase<TLayout, Nullable, TDerived>(typeInfoHelper, std::move(arrowType), pool, maxLen, totalAllocated)
+        : TBase(typeInfoHelper, std::move(arrowType), pool, maxLen, totalAllocated)
     {}
 
     TFixedSizeArrayBuilder(const ITypeInfoHelper& typeInfoHelper, const TType* type, arrow::MemoryPool& pool, size_t maxLen, size_t* totalAllocated = nullptr)
-        : TFixedSizeArrayBuilderBase<TLayout, Nullable, TDerived>(typeInfoHelper, type, pool, maxLen, totalAllocated)
+        : TBase(typeInfoHelper, type, pool, maxLen, totalAllocated)
     {}
 
     void DoAddNotNull(TUnboxedValuePod value) {
@@ -936,13 +938,11 @@ class TStringArrayBuilder final : public TArrayBuilderBase {
     i32 TypeLen = 0;
 };
 
-template<bool Nullable>
-class TTupleArrayBuilder final : public TArrayBuilderBase {
+template<bool Nullable, typename TDerived>
+class TTupleArrayBuilderBase : public TArrayBuilderBase {
 public:
-    TTupleArrayBuilder(const ITypeInfoHelper& typeInfoHelper, const TType* type, arrow::MemoryPool& pool, size_t maxLen,
-                       TVector<TArrayBuilderBase::Ptr>&& children, size_t* totalAllocated)
+    TTupleArrayBuilderBase(const ITypeInfoHelper& typeInfoHelper, const TType* type, arrow::MemoryPool& pool, size_t maxLen, size_t* totalAllocated = nullptr)
         : TArrayBuilderBase(typeInfoHelper, type, pool, maxLen, totalAllocated)
-        , Children(std::move(children))
     {
         Reserve();
     }
@@ -951,70 +951,50 @@ class TTupleArrayBuilder final : public TArrayBuilderBase {
         if constexpr (Nullable) {
             if (!value) {
                 NullBuilder->UnsafeAppend(0);
-                for (ui32 i = 0; i < Children.size(); ++i) {
-                    Children[i]->AddDefault();
-                }
+                static_cast<TDerived*>(this)->AddToChildrenDefault();
                 return;
             }
             NullBuilder->UnsafeAppend(1);
         }
 
-        auto elements = value.GetElements();
-        if (elements) {
-            for (ui32 i = 0; i < Children.size(); ++i) {
-                Children[i]->Add(elements[i]);
-            }
-        } else {
-            for (ui32 i = 0; i < Children.size(); ++i) {
-                auto element = value.GetElement(i);
-                Children[i]->Add(element);
-            }
-        }
+        static_cast<TDerived*>(this)->AddToChildren(value);
     }
 
     void DoAdd(TBlockItem value) final {
         if constexpr (Nullable) {
             if (!value) {
                 NullBuilder->UnsafeAppend(0);
-                for (ui32 i = 0; i < Children.size(); ++i) {
-                    Children[i]->AddDefault();
-                }
+                static_cast<TDerived*>(this)->AddToChildrenDefault();
                 return;
             }
             NullBuilder->UnsafeAppend(1);
         }
 
-        auto elements = value.AsTuple();
-        for (ui32 i = 0; i < Children.size(); ++i) {
-            Children[i]->Add(elements[i]);
-        }
+        static_cast<TDerived*>(this)->AddToChildren(value);
     }
 
     void DoAdd(TInputBuffer& input) final {
         if constexpr (Nullable) {
             if (!input.PopChar()) {
-                return DoAdd(TBlockItem{});
+                NullBuilder->UnsafeAppend(0);
+                static_cast<TDerived*>(this)->AddToChildrenDefault();
+                return;
             }
             NullBuilder->UnsafeAppend(1);
         }
 
-        for (ui32 i = 0; i < Children.size(); ++i) {
-            Children[i]->Add(input);
-        }
+        static_cast<TDerived*>(this)->AddToChildren(input);
     }
 
     void DoAddDefault() final {
         if constexpr (Nullable) {
             NullBuilder->UnsafeAppend(1);
         }
-        for (ui32 i = 0; i < Children.size(); ++i) {
-            Children[i]->AddDefault();
-        }
+        static_cast<TDerived*>(this)->AddToChildrenDefault();
     }
 
     void DoAddMany(const arrow::ArrayData& array, const ui8* sparseBitmap, size_t popCount) final {
         Y_ABORT_UNLESS(!array.buffers.empty());
-        Y_ABORT_UNLESS(array.child_data.size() == Children.size());
 
         if constexpr (Nullable) {
             if (array.buffers.front()) {
@@ -1026,14 +1006,11 @@ class TTupleArrayBuilder final : public TArrayBuilderBase {
             }
         }
 
-        for (size_t i = 0; i < Children.size(); ++i) {
-            Children[i]->AddMany(*array.child_data[i], popCount, sparseBitmap, array.length);
-        }
+        static_cast<TDerived*>(this)->AddManyToChildren(array, sparseBitmap, popCount);
     }
 
     void DoAddMany(const arrow::ArrayData& array, ui64 beginIndex, size_t count) final {
         Y_ABORT_UNLESS(!array.buffers.empty());
-        Y_ABORT_UNLESS(array.child_data.size() == Children.size());
 
         if constexpr (Nullable) {
             for (ui64 i = beginIndex; i < beginIndex + count; ++i) {
@@ -1041,14 +1018,11 @@ class TTupleArrayBuilder final : public TArrayBuilderBase {
             }
         }
 
-        for (size_t i = 0; i < Children.size(); ++i) {
-            Children[i]->AddMany(*array.child_data[i], beginIndex, count);
-        }
+        static_cast<TDerived*>(this)->AddManyToChildren(array, beginIndex, count);
     }
 
     void DoAddMany(const arrow::ArrayData& array, const ui64* indexes, size_t count) final {
         Y_ABORT_UNLESS(!array.buffers.empty());
-        Y_ABORT_UNLESS(array.child_data.size() == Children.size());
 
         if constexpr (Nullable) {
             for (size_t i = 0; i < count; ++i) {
@@ -1056,9 +1030,7 @@ class TTupleArrayBuilder final : public TArrayBuilderBase {
             }
         }
 
-        for (size_t i = 0; i < Children.size(); ++i) {
-            Children[i]->AddMany(*array.child_data[i], indexes, count);
-        }
+        static_cast<TDerived*>(this)->AddManyToChildren(array, indexes, count);
     }
 
     TBlockArrayTree::Ptr DoBuildTree(bool finish) final {
@@ -1074,10 +1046,7 @@ class TTupleArrayBuilder final : public TArrayBuilderBase {
 
         Y_ABORT_UNLESS(length);
         result->Payload.push_back(arrow::ArrayData::Make(ArrowType, length, { nullBitmap }));
-        result->Children.reserve(Children.size());
-        for (ui32 i = 0; i < Children.size(); ++i) {
-            result->Children.emplace_back(Children[i]->BuildTree(finish));
-        }
+        static_cast<TDerived*>(this)->BuildChildrenTree(finish, result->Children);
 
         if (!finish) {
             Reserve();
@@ -1104,10 +1073,145 @@ class TTupleArrayBuilder final : public TArrayBuilderBase {
     }
 
 private:
-    TVector<std::unique_ptr<TArrayBuilderBase>> Children;
     std::unique_ptr<TTypedBufferBuilder<ui8>> NullBuilder;
 };
 
+template<bool Nullable>
+class TTupleArrayBuilder final : public TTupleArrayBuilderBase<Nullable, TTupleArrayBuilder<Nullable>> {
+public:
+
+    TTupleArrayBuilder(const ITypeInfoHelper& typeInfoHelper, const TType* type, arrow::MemoryPool& pool, size_t maxLen,
+                       TVector<TArrayBuilderBase::Ptr>&& children, size_t* totalAllocated = nullptr)
+        : TTupleArrayBuilderBase<Nullable, TTupleArrayBuilder<Nullable>>(typeInfoHelper, type, pool, maxLen, totalAllocated)
+        , Children_(std::move(children)) {}
+
+    void AddToChildrenDefault() {
+        for (ui32 i = 0; i < Children_.size(); ++i) {
+            Children_[i]->AddDefault();
+        }
+    }
+    
+    void AddToChildren(NUdf::TUnboxedValuePod value) {
+        auto elements = value.GetElements();
+        if (elements) {
+            for (ui32 i = 0; i < Children_.size(); ++i) {
+                Children_[i]->Add(elements[i]);
+            }
+        } else {
+            for (ui32 i = 0; i < Children_.size(); ++i) {
+                auto element = value.GetElement(i);
+                Children_[i]->Add(element);
+            }
+        }
+    }
+    
+    void AddToChildren(TBlockItem value) {
+        auto elements = value.AsTuple();
+        for (ui32 i = 0; i < Children_.size(); ++i) {
+            Children_[i]->Add(elements[i]);
+        }
+    }
+
+    void AddToChildren(TInputBuffer& input) {
+        for (ui32 i = 0; i < Children_.size(); ++i) {
+            Children_[i]->Add(input);
+        }
+    }
+
+    void AddManyToChildren(const arrow::ArrayData& array, const ui8* sparseBitmap, size_t popCount) {
+        Y_ABORT_UNLESS(array.child_data.size() == Children_.size());
+        for (size_t i = 0; i < Children_.size(); ++i) {
+            Children_[i]->AddMany(*array.child_data[i], popCount, sparseBitmap, array.length);
+        }
+    }
+
+    void AddManyToChildren(const arrow::ArrayData& array, ui64 beginIndex, size_t count) {
+        Y_ABORT_UNLESS(array.child_data.size() == Children_.size());
+        for (size_t i = 0; i < Children_.size(); ++i) {
+            Children_[i]->AddMany(*array.child_data[i], beginIndex, count);
+        }
+    }
+
+    void AddManyToChildren(const arrow::ArrayData& array, const ui64* indexes, size_t count) {
+        Y_ABORT_UNLESS(array.child_data.size() == Children_.size());
+        for (size_t i = 0; i < Children_.size(); ++i) {
+            Children_[i]->AddMany(*array.child_data[i], indexes, count);
+        }
+    }
+    
+    void BuildChildrenTree(bool finish, std::vector<TArrayBuilderBase::TBlockArrayTree::Ptr>& resultChildren) {
+        resultChildren.reserve(Children_.size());
+        for (ui32 i = 0; i < Children_.size(); ++i) {
+            resultChildren.emplace_back(Children_[i]->BuildTree(finish));
+        }
+    }
+
+private:
+TVector<std::unique_ptr<TArrayBuilderBase>> Children_;
+};
+
+template<typename TDate, bool Nullable>
+class TTzDateArrayBuilder final : public TTupleArrayBuilderBase<Nullable, TTzDateArrayBuilder<TDate, Nullable>> {
+    using TDateLayout = typename TDataType<TDate>::TLayout;
+    static constexpr auto DataSlot = TDataType<TDate>::Slot;
+
+public:
+    TTzDateArrayBuilder(const ITypeInfoHelper& typeInfoHelper, const TType* type, arrow::MemoryPool& pool, size_t maxLen, size_t* totalAllocated = nullptr)
+        : TTupleArrayBuilderBase<Nullable, TTzDateArrayBuilder<TDate, Nullable>>(typeInfoHelper, type, pool, maxLen, totalAllocated)
+        , DateBuilder_(typeInfoHelper, NKikimr::NMiniKQL::MakeTzLayoutArrowType<DataSlot>(), pool, maxLen)
+        , TimezoneBuilder_(typeInfoHelper, arrow::uint16(), pool, maxLen)
+        {
+        }
+
+    void AddToChildrenDefault() {
+        DateBuilder_.AddDefault();
+        TimezoneBuilder_.AddDefault();
+    }
+    
+    void AddToChildren(NUdf::TUnboxedValuePod value) {
+        DateBuilder_.Add(value);
+        TimezoneBuilder_.Add(TBlockItem(value.GetTimezoneId()));
+    }
+    
+    void AddToChildren(TBlockItem value) {
+        DateBuilder_.Add(value);
+        TimezoneBuilder_.Add(TBlockItem(value.GetTimezoneId()));
+    }
+
+    void AddToChildren(TInputBuffer& input) {
+        DateBuilder_.Add(input);
+        TimezoneBuilder_.Add(input);
+    }
+
+    void AddManyToChildren(const arrow::ArrayData& array, const ui8* sparseBitmap, size_t popCount) {
+        Y_ABORT_UNLESS(array.child_data.size() == 2);
+        DateBuilder_.AddMany(*array.child_data[0], popCount, sparseBitmap, array.length);
+        TimezoneBuilder_.AddMany(*array.child_data[1], popCount, sparseBitmap, array.length);
+    }
+
+    void AddManyToChildren(const arrow::ArrayData& array, ui64 beginIndex, size_t count) {
+        Y_ABORT_UNLESS(array.child_data.size() == 2);
+        DateBuilder_.AddMany(*array.child_data[0], beginIndex, count);
+        TimezoneBuilder_.AddMany(*array.child_data[1], beginIndex, count);
+    }
+
+    void AddManyToChildren(const arrow::ArrayData& array, const ui64* indexes, size_t count) {
+        Y_ABORT_UNLESS(array.child_data.size() == 2);
+        DateBuilder_.AddMany(*array.child_data[0], indexes, count);
+        TimezoneBuilder_.AddMany(*array.child_data[1], indexes, count);
+    }
+    
+    void BuildChildrenTree(bool finish, std::vector<TArrayBuilderBase::TBlockArrayTree::Ptr>& resultChildren) {
+        resultChildren.emplace_back(DateBuilder_.BuildTree(finish));
+        resultChildren.emplace_back(TimezoneBuilder_.BuildTree(finish));
+    }
+
+private:
+    TFixedSizeArrayBuilder<TDateLayout, false> DateBuilder_;
+    TFixedSizeArrayBuilder<ui16, false> TimezoneBuilder_;
+};
+
+
 class TExternalOptionalArrayBuilder final : public TArrayBuilderBase {
 public:
     TExternalOptionalArrayBuilder(const ITypeInfoHelper& typeInfoHelper, const TType* type, arrow::MemoryPool& pool, size_t maxLen,
@@ -1306,7 +1410,13 @@ inline std::unique_ptr<TArrayBuilderBase> MakeArrayBuilderImpl(
             return std::make_unique<TStringArrayBuilder<arrow::BinaryType, Nullable>>(typeInfoHelper, type, pool, maxLen, totalAllocated);
         case NUdf::EDataSlot::Utf8:
         case NUdf::EDataSlot::Json:
-            return std::make_unique<TStringArrayBuilder<arrow::StringType, Nullable>>(typeInfoHelper, type, pool, maxLen, totalAllocated);
+            return std::make_unique<TStringArrayBuilder<arrow::StringType, Nullable>>(typeInfoHelper, type, pool, maxLen);
+        case NUdf::EDataSlot::TzDate:
+            return std::make_unique<TTzDateArrayBuilder<TTzDate, Nullable>>(typeInfoHelper, type, pool, maxLen);
+        case NUdf::EDataSlot::TzDatetime:
+            return std::make_unique<TTzDateArrayBuilder<TTzDatetime, Nullable>>(typeInfoHelper, type, pool, maxLen);
+        case NUdf::EDataSlot::TzTimestamp:
+            return std::make_unique<TTzDateArrayBuilder<TTzTimestamp, Nullable>>(typeInfoHelper, type, pool, maxLen);
         default:
             Y_ENSURE(false, "Unsupported data slot");
         }
diff --git a/ydb/library/yql/public/udf/arrow/block_item.h b/ydb/library/yql/public/udf/arrow/block_item.h
index 15edabe27ae1..f04a25666b12 100644
--- a/ydb/library/yql/public/udf/arrow/block_item.h
+++ b/ydb/library/yql/public/udf/arrow/block_item.h
@@ -155,6 +155,15 @@ class TBlockItem {
 
     bool IsBoxed() const { return EMarkers::Boxed == GetMarkers(); }
     bool IsEmbedded() const { return EMarkers::Embedded == GetMarkers(); }
+    inline void SetTimezoneId(ui16 id) {
+        UDF_VERIFY(GetMarkers() == EMarkers::Embedded, "Value is not a datetime");
+        Raw.Simple.TimezoneId = id;
+    }
+
+    inline ui16 GetTimezoneId() const {
+        UDF_VERIFY(GetMarkers() == EMarkers::Embedded, "Value is not a datetime");
+        return Raw.Simple.TimezoneId;
+    }
 
 private:
     union TRaw {
@@ -180,7 +189,8 @@ class TBlockItem {
             union {
                 ui64 FullMeta;
                 struct {
-                    ui8 Reserved[7];
+                    TTimezoneId TimezoneId;
+                    ui8 Reserved[5];
                     ui8 Meta;
                 };
             };
diff --git a/ydb/library/yql/public/udf/arrow/block_item_comparator.h b/ydb/library/yql/public/udf/arrow/block_item_comparator.h
index 98ca57d7f94d..3431932d9250 100644
--- a/ydb/library/yql/public/udf/arrow/block_item_comparator.h
+++ b/ydb/library/yql/public/udf/arrow/block_item_comparator.h
@@ -3,6 +3,7 @@
 #include "block_item.h"
 #include "block_reader.h"
 
+
 #include <ydb/library/yql/public/udf/udf_ptr.h>
 #include <ydb/library/yql/public/udf/udf_type_inspection.h>
 #include <ydb/library/yql/public/udf/udf_type_size_check.h>
@@ -148,6 +149,39 @@ class TStringBlockItemComparator : public TBlockItemComparatorBase<TStringBlockI
     }
 };
 
+template<typename TTzType, bool Nullable>
+class TTzDateBlockItemComparator : public TBlockItemComparatorBase<TTzDateBlockItemComparator<TTzType, Nullable>, Nullable> {
+    using TLayout = typename TDataType<TTzType>::TLayout;
+
+public:
+    bool DoCompare(TBlockItem lhs, TBlockItem rhs) const {
+        const auto x = lhs.Get<TLayout>();
+        const auto y = rhs.Get<TLayout>();
+        
+        if (x == y) {
+            const auto tx = lhs.GetTimezoneId();
+            const auto ty = rhs.GetTimezoneId();
+            return (tx == ty) ? 0 : (tx < ty ? -1 : 1);
+        }
+
+        if (x < y) {
+            return -1;
+        }
+
+        return 1;
+    }
+
+    bool DoEquals(TBlockItem lhs, TBlockItem rhs) const {
+        return lhs.Get<TLayout>() == rhs.Get<TLayout>() && lhs.GetTimezoneId() == rhs.GetTimezoneId();
+    }
+    
+    
+    bool DoLess(TBlockItem lhs, TBlockItem rhs) const {
+        return std::forward_as_tuple(lhs.Get<TLayout>(), lhs.GetTimezoneId()) < std::forward_as_tuple(rhs.Get<TLayout>(), rhs.GetTimezoneId());
+    }
+};
+
+
 template <bool Nullable>
 class TTupleBlockItemComparator : public TBlockItemComparatorBase<TTupleBlockItemComparator<Nullable>, Nullable> {
 public:
diff --git a/ydb/library/yql/public/udf/arrow/block_item_hasher.h b/ydb/library/yql/public/udf/arrow/block_item_hasher.h
index 4c3d89e998e8..a173e7940f24 100644
--- a/ydb/library/yql/public/udf/arrow/block_item_hasher.h
+++ b/ydb/library/yql/public/udf/arrow/block_item_hasher.h
@@ -49,6 +49,17 @@ class TFixedSizeBlockItemHasher : public TBlockItemHasherBase<TFixedSizeBlockIte
     }
 };
 
+template <typename T, bool Nullable>
+class TTzDateBlockItemHasher : public TBlockItemHasherBase<TTzDateBlockItemHasher<T, Nullable>, Nullable> {
+public:
+    ui64 DoHash(TBlockItem value) const {
+        using TLayout = typename TDataType<T>::TLayout;
+        TUnboxedValuePod uv {value.Get<TLayout>()};
+        uv.SetTimezoneId(value.GetTimezoneId());
+        return GetValueHash<TDataType<T>::Slot>(uv);
+    }
+};
+
 template <typename TStringType, bool Nullable>
 class TStringBlockItemHasher : public TBlockItemHasherBase<TStringBlockItemHasher<TStringType, Nullable>, Nullable> {
 public:
diff --git a/ydb/library/yql/public/udf/arrow/block_reader.h b/ydb/library/yql/public/udf/arrow/block_reader.h
index d42c9f16c7e0..3eaeb62f73ec 100644
--- a/ydb/library/yql/public/udf/arrow/block_reader.h
+++ b/ydb/library/yql/public/udf/arrow/block_reader.h
@@ -203,26 +203,16 @@ class TStringBlockReader final : public IBlockReader {
     }
 };
 
-template<bool Nullable>
-class TTupleBlockReader final : public IBlockReader {
+template<bool Nullable, typename TDerived>
+class TTupleBlockReaderBase : public IBlockReader {
 public:
-    TTupleBlockReader(TVector<std::unique_ptr<IBlockReader>>&& children)
-        : Children(std::move(children))
-        , Items(Children.size())
-    {}
-
     TBlockItem GetItem(const arrow::ArrayData& data, size_t index) final {
         if constexpr (Nullable) {
             if (IsNull(data, index)) {
                 return {};
             }
         }
-
-        for (ui32 i = 0; i < Children.size(); ++i) {
-            Items[i] = Children[i]->GetItem(*data.child_data[i], index);
-        }
-
-        return TBlockItem(Items.data());
+        return static_cast<TDerived*>(this)->GetChildrenItems(data, index);
     }
 
     TBlockItem GetScalarItem(const arrow::Scalar& scalar) final {
@@ -233,33 +223,87 @@ class TTupleBlockReader final : public IBlockReader {
         }
 
         const auto& structScalar = arrow::internal::checked_cast<const arrow::StructScalar&>(scalar);
+        return static_cast<TDerived*>(this)->GetChildrenScalarItems(structScalar);
+    }
 
-        for (ui32 i = 0; i < Children.size(); ++i) {
-            Items[i] = Children[i]->GetScalarItem(*structScalar.value[i]);
+    ui64 GetDataWeight(const arrow::ArrayData& data) const final {
+        ui64 size = 0;
+        if constexpr (Nullable) {
+            size += data.length;
         }
 
-        return TBlockItem(Items.data());
+        size += static_cast<const TDerived*>(this)->GetChildrenDataWeight(data);
+        return size;
     }
 
-    ui64 GetDataWeight(const arrow::ArrayData& data) const final {
+    ui64 GetDataWeight(TBlockItem item) const final {
+        return static_cast<const TDerived*>(this)->GetDataWeightImpl(item);
+    }
+
+    ui64 GetDefaultValueWeight() const final {
         ui64 size = 0;
         if constexpr (Nullable) {
-            size += data.length;
+            size = 1;
+        }
+        size += static_cast<const TDerived*>(this)->GetChildrenDefaultDataWeight();
+        return size;
+    }
+
+    void SaveItem(const arrow::ArrayData& data, size_t index, TOutputBuffer& out) const final {
+        if constexpr (Nullable) {
+            if (IsNull(data, index)) {
+                return out.PushChar(0);
+            }
+            out.PushChar(1);
         }
 
+        static_cast<const TDerived*>(this)->SaveChildrenItems(data, index, out);
+    }
+
+    void SaveScalarItem(const arrow::Scalar& scalar, TOutputBuffer& out) const final {
+        if constexpr (Nullable) {
+            if (!scalar.is_valid) {
+                return out.PushChar(0);
+            }
+            out.PushChar(1);
+        }
+
+        const auto& structScalar = arrow::internal::checked_cast<const arrow::StructScalar&>(scalar);
+
+        static_cast<const TDerived*>(this)->SaveChildrenScalarItems(structScalar, out);
+    }
+};
+
+template<bool Nullable>
+class TTupleBlockReader final : public TTupleBlockReaderBase<Nullable, TTupleBlockReader<Nullable>> {
+public:
+    TTupleBlockReader(TVector<std::unique_ptr<IBlockReader>>&& children)
+        : Children(std::move(children))
+        , Items(Children.size())
+    {}
+
+    TBlockItem GetChildrenItems(const arrow::ArrayData& data, size_t index) {
         for (ui32 i = 0; i < Children.size(); ++i) {
-            size += Children[i]->GetDataWeight(*data.child_data[i]);
+            Items[i] = Children[i]->GetItem(*data.child_data[i], index);
         }
 
-        return size;
+        return TBlockItem(Items.data());
     }
 
-    ui64 GetDataWeight(TBlockItem item) const final {
+    TBlockItem GetChildrenScalarItems(const arrow::StructScalar& structScalar) {
+        for (ui32 i = 0; i < Children.size(); ++i) {
+            Items[i] = Children[i]->GetScalarItem(*structScalar.value[i]);
+        }
+
+        return TBlockItem(Items.data());
+    }
+    
+    size_t GetDataWeightImpl(const TBlockItem& item) const {
         const TBlockItem* items = nullptr;
         ui64 size = 0;
         if constexpr (Nullable) {
             if (!item) {
-                return GetDefaultValueWeight();
+                return this->GetDefaultValueWeight();
             }
             size = 1;
             items = item.GetOptionalValue().GetElements();
@@ -274,40 +318,30 @@ class TTupleBlockReader final : public IBlockReader {
         return size;
     }
 
-    ui64 GetDefaultValueWeight() const final {
-        ui64 size = 0;
-        if constexpr (Nullable) {
-            size = 1;
-        }
+    size_t GetChildrenDataWeight(const arrow::ArrayData& data) const {
+        size_t size = 0;
         for (ui32 i = 0; i < Children.size(); ++i) {
-            size += Children[i]->GetDefaultValueWeight();
+            size += Children[i]->GetDataWeight(*data.child_data[i]);
         }
+
         return size;
     }
 
-    void SaveItem(const arrow::ArrayData& data, size_t index, TOutputBuffer& out) const final {
-        if constexpr (Nullable) {
-            if (IsNull(data, index)) {
-                return out.PushChar(0);
-            }
-            out.PushChar(1);
+    size_t GetChildrenDefaultDataWeight() const {
+        size_t size = 0;
+        for (ui32 i = 0; i < Children.size(); ++i) {
+            size += Children[i]->GetDefaultValueWeight();
         }
+        return size;
+    }
 
+    void SaveChildrenItems(const arrow::ArrayData& data, size_t index, TOutputBuffer& out) const {
         for (ui32 i = 0; i < Children.size(); ++i) {
             Children[i]->SaveItem(*data.child_data[i], index, out);
         }
     }
-
-    void SaveScalarItem(const arrow::Scalar& scalar, TOutputBuffer& out) const final {
-        if constexpr (Nullable) {
-            if (!scalar.is_valid) {
-                return out.PushChar(0);
-            }
-            out.PushChar(1);
-        }
-
-        const auto& structScalar = arrow::internal::checked_cast<const arrow::StructScalar&>(scalar);
-
+    
+    void SaveChildrenScalarItems(const arrow::StructScalar& structScalar, TOutputBuffer& out) const {
         for (ui32 i = 0; i < Children.size(); ++i) {
             Children[i]->SaveScalarItem(*structScalar.value[i], out);
         }
@@ -318,6 +352,65 @@ class TTupleBlockReader final : public IBlockReader {
     TVector<TBlockItem> Items;
 };
 
+template<typename TTzDate, bool Nullable>
+class TTzDateBlockReader final : public TTupleBlockReaderBase<Nullable, TTzDateBlockReader<TTzDate, Nullable>> {
+public:
+    TBlockItem GetChildrenItems(const arrow::ArrayData& data, size_t index) {
+        Y_DEBUG_ABORT_UNLESS(data.child_data.size() == 2);
+
+        TBlockItem item {DateReader_.GetItem(*data.child_data[0], index)};
+        item.SetTimezoneId(TimezoneReader_.GetItem(*data.child_data[1], index).Get<ui16>());
+        return item;
+    }
+
+    TBlockItem GetChildrenScalarItems(const arrow::StructScalar& structScalar) {
+        Y_DEBUG_ABORT_UNLESS(structScalar.value.size() == 2);
+
+        TBlockItem item {DateReader_.GetScalarItem(*structScalar.value[0])};
+        item.SetTimezoneId(TimezoneReader_.GetScalarItem(*structScalar.value[1]).Get<ui16>());
+        return item;
+    }
+
+    size_t GetChildrenDataWeight(const arrow::ArrayData& data) const {
+        Y_DEBUG_ABORT_UNLESS(data.child_data.size() == 2);
+
+        size_t size = 0;
+        size += DateReader_.GetDataWeight(*data.child_data[0]);
+        size += TimezoneReader_.GetDataWeight(*data.child_data[1]);
+        return size;
+    }
+
+    size_t GetDataWeightImpl(const TBlockItem& item) const {
+        Y_UNUSED(item);
+        return GetChildrenDefaultDataWeight();
+    }
+    
+    size_t GetChildrenDefaultDataWeight() const {
+        ui64 size = 0;
+        if constexpr (Nullable) {
+            size = 1;
+        }
+
+        size += DateReader_.GetDefaultValueWeight();
+        size += TimezoneReader_.GetDefaultValueWeight();
+        return size;
+    }
+
+    void SaveChildrenItems(const arrow::ArrayData& data, size_t index, TOutputBuffer& out) const {
+        DateReader_.SaveItem(*data.child_data[0], index, out);
+        TimezoneReader_.SaveItem(*data.child_data[1], index, out);
+    }
+    
+    void SaveChildrenScalarItems(const arrow::StructScalar& structScalar, TOutputBuffer& out) const {
+        DateReader_.SaveScalarItem(*structScalar.value[0], out);
+        TimezoneReader_.SaveScalarItem(*structScalar.value[1], out);
+    }
+
+private:
+    TFixedSizeBlockReader<typename TDataType<TTzDate>::TLayout, /* Nullable */false> DateReader_;
+    TFixedSizeBlockReader<ui16, /* Nullable */false> TimezoneReader_;
+};
+
 class TExternalOptionalBlockReader final : public IBlockReader {
 public:
     TExternalOptionalBlockReader(std::unique_ptr<IBlockReader>&& inner)
@@ -390,6 +483,8 @@ struct TReaderTraits {
     using TExtOptional = TExternalOptionalBlockReader;
     template<bool Nullable>
     using TResource = TResourceBlockReader<Nullable>;
+    template<typename TTzDate, bool Nullable>
+    using TTzDateReader = TTzDateBlockReader<TTzDate, Nullable>;
 
     static std::unique_ptr<TResult> MakePg(const TPgTypeDescription& desc, const IPgBuilder* pgBuilder) {
         Y_UNUSED(pgBuilder);
@@ -407,6 +502,15 @@ struct TReaderTraits {
             return std::make_unique<TResource<false>>();
         }
     }
+
+    template<typename TTzDate>
+    static std::unique_ptr<TResult> MakeTzDate(bool isOptional) {
+        if (isOptional) {
+            return std::make_unique<TTzDateReader<TTzDate, true>>();
+        } else {
+            return std::make_unique<TTzDateReader<TTzDate, false>>();
+        }
+    }
 };
 
 template <typename TTraits>
@@ -544,7 +648,15 @@ std::unique_ptr<typename TTraits::TResult> MakeBlockReaderImpl(const ITypeInfoHe
             return MakeStringBlockReaderImpl<TTraits, arrow::StringType, NUdf::EDataSlot::Utf8>(isOptional);
         case NUdf::EDataSlot::Json:
             return MakeStringBlockReaderImpl<TTraits, arrow::StringType, NUdf::EDataSlot::Json>(isOptional);
-        default:
+        case NUdf::EDataSlot::TzDate:
+            return TTraits::template MakeTzDate<TTzDate>(isOptional);
+        case NUdf::EDataSlot::TzDatetime:
+            return TTraits::template MakeTzDate<TTzDatetime>(isOptional);
+        case NUdf::EDataSlot::TzTimestamp:
+            return TTraits::template MakeTzDate<TTzTimestamp>(isOptional);
+        case NUdf::EDataSlot::Uuid:
+        case NUdf::EDataSlot::Decimal:
+        case NUdf::EDataSlot::DyNumber:
             Y_ENSURE(false, "Unsupported data slot");
         }
     }
@@ -606,7 +718,10 @@ inline void UpdateBlockItemSerializeProps(const ITypeInfoHelper& typeInfoHelper,
         if (dataTypeInfo.Features & StringType) {
             props.MaxSize = {};
             props.IsFixed = false;
-        } else {
+        } else if (dataTypeInfo.Features & TzDateType) {
+            *props.MaxSize += dataTypeInfo.FixedSize + sizeof(TTimezoneId);
+        }
+        else {
             *props.MaxSize += dataTypeInfo.FixedSize;
         }
         return;
diff --git a/ydb/library/yql/public/udf/arrow/udf_arrow_helpers.h b/ydb/library/yql/public/udf/arrow/udf_arrow_helpers.h
index 669e6386b2e0..2231ff239e92 100644
--- a/ydb/library/yql/public/udf/arrow/udf_arrow_helpers.h
+++ b/ydb/library/yql/public/udf/arrow/udf_arrow_helpers.h
@@ -533,6 +533,25 @@ arrow::Status UnaryPreallocatedExecImpl(arrow::compute::KernelContext* ctx, cons
     return arrow::Status::OK();
 }
 
+
+template <typename TReader, typename TOutput, TOutput(*Core)(TBlockItem)>
+arrow::Status UnaryPreallocatedReaderExecImpl(arrow::compute::KernelContext* ctx, const arrow::compute::ExecBatch& batch, arrow::Datum* res) {
+    Y_UNUSED(ctx);
+    static_assert(std::is_base_of_v<IBlockReader, TReader>);
+    TReader reader;
+
+    auto& inArray = batch.values[0].array();
+    auto& outArray = res->array();
+    TOutput* outValues = outArray->GetMutableValues<TOutput>(1);
+    auto length = inArray->length;
+    for (int64_t i = 0; i < length; ++i) {
+        auto item = reader.GetItem(*inArray, i);
+        outValues[i] = Core(item);
+    }
+
+    return arrow::Status::OK();
+}
+
 template<typename TInput, typename TOutput, std::pair<TOutput, bool> Core(TInput)>
 struct TUnaryUnsafeFixedSizeFilterKernel {
     static arrow::Status Do(arrow::compute::KernelContext* ctx, const arrow::compute::ExecBatch& batch, arrow::Datum* res) {
diff --git a/ydb/library/yql/public/udf/arrow/ut/array_builder_ut.cpp b/ydb/library/yql/public/udf/arrow/ut/array_builder_ut.cpp
index fcaa2815846a..a915bb7814a4 100644
--- a/ydb/library/yql/public/udf/arrow/ut/array_builder_ut.cpp
+++ b/ydb/library/yql/public/udf/arrow/ut/array_builder_ut.cpp
@@ -175,6 +175,30 @@ Y_UNIT_TEST_SUITE(TArrayBuilderTest) {
         UNIT_ASSERT_VALUES_EQUAL(resource2->GetResourceTag(), ResourceName);
     }
 
+    Y_UNIT_TEST(TestTzDateBuilder_Layout) {
+        TArrayBuilderTestData data;
+        const auto tzDateType = data.PgmBuilder.NewDataType(EDataSlot::TzDate);
+        const auto arrayBuilder = MakeArrayBuilder(NMiniKQL::TTypeInfoHelper(), tzDateType, 
+            *data.ArrowPool, MAX_BLOCK_SIZE, /* pgBuilder */ nullptr);
+
+        auto makeTzDate = [] (ui16 val, ui16 tz) {
+            TUnboxedValuePod tzDate {val};
+            tzDate.SetTimezoneId(tz);
+            return tzDate;
+        };
+
+        TVector<TUnboxedValuePod> dates{makeTzDate(1234, 1), makeTzDate(1234, 2), makeTzDate(45678, 333)};
+        for (auto date: dates) {
+            arrayBuilder->Add(date);
+        }
+        
+        const auto datum = arrayBuilder->Build(true);
+        UNIT_ASSERT(datum.is_array());
+        UNIT_ASSERT_VALUES_EQUAL(datum.length(), dates.size());
+        const auto childData = datum.array()->child_data;
+        UNIT_ASSERT_VALUES_EQUAL_C(childData.size(), 2, "Expected date and timezone children");
+    }
+
     Y_UNIT_TEST(TestResourceStringValueBuilderReader) {
         TArrayBuilderTestData data;
         const auto resourceType = data.PgmBuilder.NewResourceType(ResourceName);
diff --git a/ydb/library/yql/public/udf/udf_data_type.h b/ydb/library/yql/public/udf/udf_data_type.h
index 7802f180fd73..476c3c313eb2 100644
--- a/ydb/library/yql/public/udf/udf_data_type.h
+++ b/ydb/library/yql/public/udf/udf_data_type.h
@@ -13,6 +13,8 @@ namespace NUdf {
 
 using TDataTypeId = ui16;
 
+using TTimezoneId = ui16;
+
 enum EDataTypeFeatures : ui32 {
     CanCompare = 1u << 0,
     HasDeterministicCompare = 1u << 1,
diff --git a/ydb/library/yql/udfs/common/datetime2/datetime_udf.cpp b/ydb/library/yql/udfs/common/datetime2/datetime_udf.cpp
index d587c3a6fccd..311168f300ac 100644
--- a/ydb/library/yql/udfs/common/datetime2/datetime_udf.cpp
+++ b/ydb/library/yql/udfs/common/datetime2/datetime_udf.cpp
@@ -38,6 +38,24 @@ class TToUnits {
     static TResult DateCore(ui16 value) {
         return value * ui32(86400) * TResult(ScaleAfterSeconds);
     }
+    
+    template<typename TTzDate>
+    static TResult TzBlockCore(TBlockItem tzDate);
+
+    template<>
+    static TResult TzBlockCore<TTzDate>(TBlockItem tzDate) {
+        return DateCore(tzDate.Get<ui16>());
+    }
+
+    template<>
+    static TResult TzBlockCore<TTzDatetime>(TBlockItem tzDate) {
+        return DatetimeCore(tzDate.Get<ui32>());
+    }
+
+    template<>
+    static TResult TzBlockCore<TTzTimestamp>(TBlockItem tzDate) {
+        return TimestampCore(tzDate.Get<ui64>());
+    }
 
     static TResult DatetimeCore(ui32 value) {
         return value * TResult(ScaleAfterSeconds);
@@ -55,6 +73,12 @@ class TToUnits {
         static auto name = TStringRef(TFuncName, std::strlen(TFuncName));
         return name;
     }
+    
+    template<typename TTzDate, typename TOutput>
+    static auto MakeTzBlockExec() {
+        using TReader = TTzDateBlockReader<TTzDate, /*Nullable*/ false>;
+        return UnaryPreallocatedReaderExecImpl<TReader, TOutput, TzBlockCore<TTzDate>>;
+    }
 
     static bool DeclareSignature(
         const TStringRef& name,
@@ -135,8 +159,12 @@ class TToUnits {
             if (!typesOnly) {
                 if (typeId == TDataType<TDate>::Id || typeId == TDataType<TTzDate>::Id) {
                     if (block) {
+                        const auto exec = (typeId == TDataType<TTzDate>::Id)
+                            ? MakeTzBlockExec<TTzDate, TResult>()
+                            : UnaryPreallocatedExecImpl<ui16, TResult, DateCore>;
+
                         builder.Implementation(new TSimpleArrowUdfImpl(argBlockTypes, outputType, block.IsScalar(),
-                            UnaryPreallocatedExecImpl<ui16, TResult, DateCore>, builder, TString(name), arrow::compute::NullHandling::INTERSECTION));
+                            exec, builder, TString(name), arrow::compute::NullHandling::INTERSECTION));
                     } else {
                         builder.Implementation(new TUnaryOverOptionalImpl<ui16, TResult, DateCore>());
                     }
@@ -144,8 +172,12 @@ class TToUnits {
 
                 if (typeId == TDataType<TDatetime>::Id || typeId == TDataType<TTzDatetime>::Id) {
                     if (block) {
+                        const auto exec = (typeId == TDataType<TTzDatetime>::Id)
+                            ? MakeTzBlockExec<TTzDatetime, TResult>()
+                            : UnaryPreallocatedExecImpl<ui32, TResult, DatetimeCore>;
+
                         builder.Implementation(new TSimpleArrowUdfImpl(argBlockTypes, outputType, block.IsScalar(),
-                            UnaryPreallocatedExecImpl<ui32, TResult, DatetimeCore>, builder, TString(name), arrow::compute::NullHandling::INTERSECTION));
+                            exec, builder, TString(name), arrow::compute::NullHandling::INTERSECTION));
                     } else {
                         builder.Implementation(new TUnaryOverOptionalImpl<ui32, TResult, DatetimeCore>());
                     }
@@ -153,8 +185,12 @@ class TToUnits {
 
                 if (typeId == TDataType<TTimestamp>::Id || typeId == TDataType<TTzTimestamp>::Id) {
                     if (block) {
+                        const auto exec = (typeId == TDataType<TTzTimestamp>::Id)
+                            ? MakeTzBlockExec<TTzTimestamp, TResult>()
+                            : UnaryPreallocatedExecImpl<ui64, TResult, TimestampCore>;
+
                         builder.Implementation(new TSimpleArrowUdfImpl(argBlockTypes, outputType, block.IsScalar(),
-                            UnaryPreallocatedExecImpl<ui64, TResult, TimestampCore>, builder, TString(name), arrow::compute::NullHandling::INTERSECTION));
+                            exec, builder, TString(name), arrow::compute::NullHandling::INTERSECTION));
                     } else {
                         builder.Implementation(new TUnaryOverOptionalImpl<ui64, TResult, TimestampCore>());
                     }