bxparks · bxparks · Apr 1, 2023 · Mar 26, 2023 · Apr 1, 2023 · Apr 1, 2023
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,16 @@
 # Changelog
 
 * Unreleased
+* 2.2.2 (2023-04-01, TZDB version 2023c)
+    * Upgrade TZDB from 2023b to 2023c.
+        * https://mm.icann.org/pipermail/tz-announce/2023-March/000079.html
+            * "This release's code and data are identical to 2023a.  In other
+              words, this release reverts all changes made in 2023b other than
+              commentary, as that appears to be the best of a bad set of
+              short-notice choices for modeling this week's daylight saving
+              chaos in Lebanon."
+    * AceTime is forced to upgrade to 2023c, because we skipped 2023a and went
+      directly to 2023b, which is being rolled back by 2023c.
 * 2.2.1 (2023-03-24, TZDB version 2023b)
     * Actually regenerate the `zonedb*` files to 2023b.
 * 2.2.0 (2023-03-24, TZDB version 2023b)

diff --git a/README.md b/README.md
@@ -56,7 +56,7 @@ This library can be an alternative to the Arduino Time
 offsets of type `kTypeManual`. See [Migrating to
 v2.2.0](MIGRATING.md#MigratingToVersion220) for details.
 
-**Version**: 2.2.1 (2023-03-24, TZDB version 2023b)
+**Version**: 2.2.2 (2023-04-01, TZDB version 2023c)
 
 **Changelog**: [CHANGELOG.md](CHANGELOG.md)
 
@@ -795,12 +795,13 @@ These boards should work but I don't test them as often:
 
 **Tier 3: May work, but not supported**
 
-* SAMD21 based boards. SAMD21 based boards are now split into 2 groups:
-    * Those using the new ArduinoCore-API, usually Arduino-branded
-      boards. These are explicitly blacklisted. See below.
-    * Other 3rd party SAMD21 boards using the previous Arduino API.
-      These *may* work but I have not explicitly tested any of them except
-      for the Seeed Studio XIAO M0.
+* Other SAMD21 based boards.
+    * SAMD21 based boards are now split into 2 groups:
+        * Those using the new ArduinoCore-API, usually Arduino-branded
+        boards. These are explicitly blacklisted. See below.
+        * Other 3rd party SAMD21 boards using the previous Arduino API.
+    * The ones using the previous Arduino API *may* work but I have not
+      explicitly tested any of them except for the Seeed Studio XIAO M0.
 
 **Tier Blacklisted**
 

diff --git a/USER_GUIDE.md b/USER_GUIDE.md
@@ -18,7 +18,7 @@ valid from the years `[2000,10000)`. By adjusting the `currentEpochYear()`, the
 library will work across any 100 year interval across the 8000 year range of the
 TZ database.
 
-**Version**: 2.2.1 (2023-03-24, TZDB 2023b)
+**Version**: 2.2.2 (2023-04-01, TZDB 2023c)
 
 **Related Documents**:
 

diff --git a/examples/AutoBenchmark/README.md b/examples/AutoBenchmark/README.md
@@ -346,7 +346,7 @@ Iterations_per_run: 1000
 
 ```
 
-## Seeed Studio XIOA SAMD21
+## Seeed Studio XIAO SAMD21
 
 * SAMD21, 48 MHz ARM Cortex-M0+
 * Arduino IDE 1.8.19, Arduino CLI 0.31.0

diff --git a/examples/AutoBenchmark/generate_readme.py b/examples/AutoBenchmark/generate_readme.py
@@ -230,7 +230,7 @@
 {micro_results}
 ```
 
-## Seeed Studio XIOA SAMD21
+## Seeed Studio XIAO SAMD21
 
 * SAMD21, 48 MHz ARM Cortex-M0+
 * Arduino IDE 1.8.19, Arduino CLI 0.31.0

diff --git a/examples/MemoryBenchmark/README.md b/examples/MemoryBenchmark/README.md
@@ -309,7 +309,7 @@ ASCII table.
 
 ```
 
-## Seeed Studio XIAO
+## Seeed Studio XIAO SAMD21
 
 * SAMD21, 48 MHz ARM Cortex-M0+
 * Arduino IDE 1.8.19, Arduino CLI 0.31.1

diff --git a/examples/MemoryBenchmark/generate_readme.py b/examples/MemoryBenchmark/generate_readme.py
@@ -279,7 +279,7 @@
 {micro_results}
 ```
 
-## Seeed Studio XIAO
+## Seeed Studio XIAO SAMD21
 
 * SAMD21, 48 MHz ARM Cortex-M0+
 * Arduino IDE 1.8.19, Arduino CLI 0.31.1

diff --git a/library.properties b/library.properties
@@ -1,5 +1,5 @@
 name=AceTime
-version=2.2.1
+version=2.2.2
 author=Brian T. Park <brian@xparks.net>
 maintainer=Brian T. Park <brian@xparks.net>
 sentence=Date, time, timezone classes for Arduino supporting the full IANA TZ Database to convert epoch seconds to date and time components in different time zones.

diff --git a/src/AceTime.h b/src/AceTime.h
@@ -66,7 +66,7 @@
 #include "zonedbx/zone_registry.h"
 
 // Version format: xxyyzz == "xx.yy.zz"
-#define ACE_TIME_VERSION 20201
-#define ACE_TIME_VERSION_STRING "2.2.1"
+#define ACE_TIME_VERSION 20202
+#define ACE_TIME_VERSION_STRING "2.2.2"
 
 #endif
diff --git a/src/tzonedb/Makefile b/src/tzonedb/Makefile
@@ -2,7 +2,7 @@ TARGETS := zone_infos.cpp zone_infos.h zone_policies.cpp zone_policies.h
 
 TOOLS := $(abspath ../../../AceTimeTools)
 TZ_REPO := $(abspath $(TOOLS)/../tz)
-TZ_VERSION := 2023b
+TZ_VERSION := 2023c
 START_YEAR := 1980
 UNTIL_YEAR := 10000
 

diff --git a/src/tzonedb/zone_infos.cpp b/src/tzonedb/zone_infos.cpp
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedb/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedb
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope basic
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 12 (11 zones, 1 links)
 // Unsupported Zones: 584 (339 zones, 245 links)
@@ -81,7 +81,7 @@ namespace tzonedb {
 // ZoneContext (should not be in PROGMEM)
 //---------------------------------------------------------------------------
 
-const char kTzDatabaseVersion[] = "2023b";
+const char kTzDatabaseVersion[] = "2023c";
 
 const char* const kFragments[] = {
 /*\x00*/ nullptr,

diff --git a/src/tzonedb/zone_infos.h b/src/tzonedb/zone_infos.h
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedb/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedb
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope basic
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 12 (11 zones, 1 links)
 // Unsupported Zones: 584 (339 zones, 245 links)

diff --git a/src/tzonedb/zone_policies.cpp b/src/tzonedb/zone_policies.cpp
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedb/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedb
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope basic
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 12 (11 zones, 1 links)
 // Unsupported Zones: 584 (339 zones, 245 links)

diff --git a/src/tzonedb/zone_policies.h b/src/tzonedb/zone_policies.h
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedb/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedb
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope basic
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 12 (11 zones, 1 links)
 // Unsupported Zones: 584 (339 zones, 245 links)

diff --git a/src/tzonedb/zone_registry.cpp b/src/tzonedb/zone_registry.cpp
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedb/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedb
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope basic
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 12 (11 zones, 1 links)
 // Unsupported Zones: 584 (339 zones, 245 links)

diff --git a/src/tzonedb/zone_registry.h b/src/tzonedb/zone_registry.h
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedb/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedb
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope basic
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 12 (11 zones, 1 links)
 // Unsupported Zones: 584 (339 zones, 245 links)

diff --git a/src/tzonedbx/Makefile b/src/tzonedbx/Makefile
@@ -2,7 +2,7 @@ TARGETS := zone_infos.cpp zone_infos.h zone_policies.cpp zone_policies.h
 
 TOOLS := $(abspath ../../../AceTimeTools)
 TZ_REPO := $(abspath $(TOOLS)/../tz)
-TZ_VERSION := 2023b
+TZ_VERSION := 2023c
 START_YEAR := 1980
 UNTIL_YEAR := 10000
 

diff --git a/src/tzonedbx/zone_infos.cpp b/src/tzonedbx/zone_infos.cpp
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedbx/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedbx
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope extended
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 16 (15 zones, 1 links)
 // Unsupported Zones: 580 (335 zones, 245 links)
@@ -81,7 +81,7 @@ namespace tzonedbx {
 // ZoneContext (should not be in PROGMEM)
 //---------------------------------------------------------------------------
 
-const char kTzDatabaseVersion[] = "2023b";
+const char kTzDatabaseVersion[] = "2023c";
 
 const char* const kFragments[] = {
 /*\x00*/ nullptr,

diff --git a/src/tzonedbx/zone_infos.h b/src/tzonedbx/zone_infos.h
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedbx/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedbx
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope extended
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 16 (15 zones, 1 links)
 // Unsupported Zones: 580 (335 zones, 245 links)
@@ -512,13 +512,13 @@ const uint8_t kZoneBufSizePacific_Apia = 5;  // Pacific/Apia in 2011
 //---------------------------------------------------------------------------
 
 // Africa/Casablanca {
-//   Morocco {SAVE '-1:00' different from 1:00}
+//   Morocco {SAVE '-1:00' is a negative DST}
 // }
 // Africa/Windhoek {
 //   Namibia {
 //     LETTER 'CAT' not single character,
 //     LETTER 'WAT' not single character,
-//     SAVE '-1:00' different from 1:00,
+//     SAVE '-1:00' is a negative DST,
 //   }
 // }
 

diff --git a/src/tzonedbx/zone_policies.cpp b/src/tzonedbx/zone_policies.cpp
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedbx/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedbx
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope extended
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 16 (15 zones, 1 links)
 // Unsupported Zones: 580 (335 zones, 245 links)

diff --git a/src/tzonedbx/zone_policies.h b/src/tzonedbx/zone_policies.h
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedbx/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedbx
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope extended
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 16 (15 zones, 1 links)
 // Unsupported Zones: 580 (335 zones, 245 links)
@@ -229,11 +229,11 @@ extern const extended::ZonePolicy kZonePolicyWinn;
 // Notable zone policies: 2
 //---------------------------------------------------------------------------
 
-// Morocco {SAVE '-1:00' different from 1:00}
+// Morocco {SAVE '-1:00' is a negative DST}
 // Namibia {
 //   LETTER 'CAT' not single character,
 //   LETTER 'WAT' not single character,
-//   SAVE '-1:00' different from 1:00,
+//   SAVE '-1:00' is a negative DST,
 // }
 
 

diff --git a/src/tzonedbx/zone_registry.cpp b/src/tzonedbx/zone_registry.cpp
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedbx/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedbx
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope extended
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 16 (15 zones, 1 links)
 // Unsupported Zones: 580 (335 zones, 245 links)

diff --git a/src/tzonedbx/zone_registry.h b/src/tzonedbx/zone_registry.h
@@ -3,7 +3,7 @@
 //   $ /home/brian/src/AceTimeTools/src/acetimetools/tzcompiler.py
 //     --input_dir /home/brian/src/AceTime/src/tzonedbx/tzfiles
 //     --output_dir /home/brian/src/AceTime/src/tzonedbx
-//     --tz_version 2023b
+//     --tz_version 2023c
 //     --action zonedb
 //     --language arduino
 //     --scope extended
@@ -26,7 +26,7 @@
 //   northamerica
 //   southamerica
 //
-// from https://github.com/eggert/tz/releases/tag/2023b
+// from https://github.com/eggert/tz/releases/tag/2023c
 //
 // Supported Zones: 16 (15 zones, 1 links)
 // Unsupported Zones: 580 (335 zones, 245 links)

diff --git a/src/zonedb/Makefile b/src/zonedb/Makefile
@@ -2,7 +2,7 @@ TARGETS := zone_infos.cpp zone_infos.h zone_policies.cpp zone_policies.h
 
 TOOLS := $(abspath ../../../AceTimeTools)
 TZ_REPO := $(abspath $(TOOLS)/../tz)
-TZ_VERSION := 2023b
+TZ_VERSION := 2023c
 START_YEAR := 2000
 UNTIL_YEAR := 10000