diff --git a/CHANGELOG.md b/CHANGELOG.md
index ea46bf39db15..91c6c5cb9c7a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 ### Bug fixes
 
+* [#6500](https://github.com/rubocop-hq/rubocop/issues/6500): Add offense to use `in_time_zone` instead of deprecated `to_time_in_current_zone`. ([@nadiyaka][])
 * [#6554](https://github.com/rubocop-hq/rubocop/issues/6554): Prevent Layout/RescueEnsureAlignment cop from breaking on block assignment when assignment is on a separate line. ([@timmcanty][])
 * [#6343](https://github.com/rubocop-hq/rubocop/pull/6343): Optimise `--auto-gen-config` when `Metrics/LineLength` cop is disabled. ([@tom-lord][])
 * [#6389](https://github.com/rubocop-hq/rubocop/pull/6389): Fix false negative for `Style/TrailingCommaInHashLitera`/`Style/TrailingCommaInArrayLiteral` when there is a comment in the last line. ([@bayandin][])
@@ -3691,3 +3692,4 @@
 [@timmcanty]: https://github.com/timmcanty
 [@tom-lord]: https://github.com/tom-lord
 [@bayandin]: https://github.com/bayandin
+[@nadiyaka]: https://github.com/nadiyaka
diff --git a/lib/rubocop/cop/rails/date.rb b/lib/rubocop/cop/rails/date.rb
index e07ae7183cb4..c51d81c05ca7 100644
--- a/lib/rubocop/cop/rails/date.rb
+++ b/lib/rubocop/cop/rails/date.rb
@@ -26,7 +26,6 @@ module Rails
       #   Date.yesterday
       #   Date.today
       #   date.to_time
-      #   date.to_time_in_current_zone
       #
       #   # good
       #   Time.zone.today
@@ -42,7 +41,7 @@ module Rails
       #   Time.zone.today - 1.day
       #   Date.current
       #   Date.yesterday
-      #   date.to_time_in_current_zone
+      #   date.in_time_zone
       #
       class Date < Cop
         include ConfigurableEnforcedStyle
@@ -55,6 +54,13 @@ class Date < Cop
 
         BAD_DAYS = %i[today current yesterday tomorrow].freeze
 
+        DEPRECATED_METHODS = [
+          { deprecated: 'to_time_in_current_zone', relevant: 'in_time_zone' }
+        ].freeze
+
+        DEPRECATED_MSG = '`%<deprecated>s` is deprecated. ' \
+                         'Use `%<relevant>s` instead.'.freeze
+
         def on_const(node)
           mod, klass = *node.children
           # we should only check core Date class (`Date` or `::Date`)
@@ -68,12 +74,25 @@ def on_send(node)
 
           return if safe_chain?(node) || safe_to_time?(node)
 
+          check_deprecated_methods(node)
+
           add_offense(node, location: :selector,
                             message: format(MSG_SEND, method: node.method_name))
         end
 
         private
 
+        def check_deprecated_methods(node)
+          DEPRECATED_METHODS.each do |relevant:, deprecated:|
+            next unless node.method_name == deprecated.to_sym
+
+            add_offense(node, location: :selector,
+                              message: format(DEPRECATED_MSG,
+                                              deprecated: deprecated,
+                                              relevant: relevant))
+          end
+        end
+
         def check_date_node(node)
           chain = extract_method_chain(node)
 
@@ -124,7 +143,7 @@ def bad_days
         end
 
         def bad_methods
-          style == :strict ? %i[to_time to_time_in_current_zone] : [:to_time]
+          %i[to_time to_time_in_current_zone]
         end
 
         def good_methods
diff --git a/manual/cops_rails.md b/manual/cops_rails.md
index 2b173969a801..c19f9bd6def9 100644
--- a/manual/cops_rails.md
+++ b/manual/cops_rails.md
@@ -388,7 +388,6 @@ Date.current
 Date.yesterday
 Date.today
 date.to_time
-date.to_time_in_current_zone
 
 # good
 Time.zone.today
@@ -406,7 +405,7 @@ Time.zone.today
 Time.zone.today - 1.day
 Date.current
 Date.yesterday
-date.to_time_in_current_zone
+date.in_time_zone
 ```
 
 ### Configurable attributes
diff --git a/spec/rubocop/cop/rails/date_spec.rb b/spec/rubocop/cop/rails/date_spec.rb
index 1f31d54cbdf6..117668f77561 100644
--- a/spec/rubocop/cop/rails/date_spec.rb
+++ b/spec/rubocop/cop/rails/date_spec.rb
@@ -74,6 +74,13 @@
         expect(cop.offenses.size).to eq(1)
       end
     end
+
+    it 'registers an offense for #to_time_in_current_zone' do
+      expect_offense(<<-RUBY.strip_indent)
+          "2016-07-12 14:36:31".to_time_in_current_zone
+                                ^^^^^^^^^^^^^^^^^^^^^^^ `to_time_in_current_zone` is deprecated. Use `in_time_zone` instead.
+      RUBY
+    end
   end
 
   context 'when EnforcedStyle is "flexible"' do
@@ -98,8 +105,11 @@
       end
     end
 
-    it 'accepts #to_time_in_current_zone' do
-      expect_no_offenses('date.to_time_in_current_zone')
+    it 'registers an offense for #to_time_in_current_zone' do
+      expect_offense(<<-RUBY.strip_indent)
+          "2016-07-12 14:36:31".to_time_in_current_zone
+                                ^^^^^^^^^^^^^^^^^^^^^^^ `to_time_in_current_zone` is deprecated. Use `in_time_zone` instead.
+      RUBY
     end
   end
 end