PERF: Construction of a DatetimeIndex from a list of Timestamp with timezone

ci/deps/actions-310-numpydev.yaml

@@ -18,9 +18,11 @@ dependencies:
   - python-dateutil
   - pytz
   - pip
+
   - pip:
     - "cython"
     - "--extra-index-url https://pypi.anaconda.org/scipy-wheels-nightly/simple"
     - "--pre"
     - "numpy"
     - "scipy"
+    - "tzdata>=2022.1"

ci/deps/actions-310.yaml

@@ -49,8 +49,9 @@ dependencies:
   - scipy>=1.7.1
   - sqlalchemy>=1.4.16
   - tabulate>=0.8.9
-  - tzdata>=2022a
   - xarray>=0.21.0
   - xlrd>=2.0.1
   - xlsxwriter>=1.4.3
   - zstandard>=0.15.2
+  - pip:
+    - tzdata>=2022.1

ci/deps/actions-311.yaml

@@ -49,8 +49,10 @@ dependencies:
   - scipy>=1.7.1
   - sqlalchemy>=1.4.16
   - tabulate>=0.8.9
-  - tzdata>=2022a
   - xarray>=0.21.0
   - xlrd>=2.0.1
   - xlsxwriter>=1.4.3
   - zstandard>=0.15.2
+
+  - pip:
+    - tzdata>=2022.1

ci/deps/actions-38-downstream_compat.yaml

@@ -68,3 +68,5 @@ dependencies:
   - pandas-gbq>=0.15.0
   - pyyaml
   - py
+  - pip:
+    - tzdata>=2022.1

ci/deps/actions-38-minimum_versions.yaml

@@ -52,7 +52,6 @@ dependencies:
   - scipy=1.7.1
   - sqlalchemy=1.4.16
   - tabulate=0.8.9
-  - tzdata=2022a
   - xarray=0.21.0
   - xlrd=2.0.1
   - xlsxwriter=1.4.3

ci/deps/actions-38.yaml

@@ -53,3 +53,5 @@ dependencies:
   - xlrd>=2.0.1
   - xlsxwriter>=1.4.3
   - zstandard>=0.15.2
+  - pip:
+    - tzdata>=2022.1

ci/deps/actions-39.yaml

@@ -49,8 +49,10 @@ dependencies:
   - scipy>=1.7.1
   - sqlalchemy>=1.4.16
   - tabulate>=0.8.9
-  - tzdata>=2022a
   - xarray>=0.21.0
   - xlrd>=2.0.1
   - xlsxwriter>=1.4.3
   - zstandard>=0.15.2
+
+  - pip:
+    - tzdata>=2022.1

ci/deps/actions-pypy-38.yaml

@@ -22,3 +22,5 @@ dependencies:
   - numpy
   - python-dateutil
   - pytz
+  - pip:
+    - tzdata>=2022.1

ci/test_wheels_windows.bat

@@ -3,7 +3,7 @@ pd.test(extra_args=['-m not clipboard and not single_cpu and not slow and not ne
 pd.test(extra_args=['-m not clipboard and single_cpu and not slow and not network and not db'])
 
 python --version
-pip install pytz six numpy python-dateutil
+pip install pytz six numpy python-dateutil tzdata>=2022.1
 pip install hypothesis>=6.34.2 pytest>=7.0.0 pytest-xdist>=2.2.0 pytest-asyncio>=0.17
 pip install --find-links=pandas/dist --no-index pandas
 python -c "%test_command%"

doc/source/getting_started/install.rst

@@ -317,7 +317,7 @@ Installable with ``pip install "pandas[timezone]"``
 Dependency                Minimum Version           pip extra       Notes
 ========================= ========================= =============== =============================================================
 tzdata                    2022.1(pypi)/             timezone        Allows the use of ``zoneinfo`` timezones with pandas.
-                          2022a(for system tzdata)                  **Note**: You only need to install the pypi package if your
+                          2022.1(for system tzdata)                 **Note**: You only need to install the pypi package if your
                                                                     system does not already provide the IANA tz database.
                                                                     However, the minimum tzdata version still applies, even if it
                                                                     is not enforced through an error.

doc/source/whatsnew/v1.5.0.rst

@@ -657,7 +657,7 @@ Optional libraries below the lowest tested version may still work, but are not c
 +-----------------+-----------------+---------+
 | tabulate        |0.8.9            |    X    |
 +-----------------+-----------------+---------+
-| tzdata          |2022a            |         |
+| tzdata          |2022.1           |         |
 +-----------------+-----------------+---------+
 | xarray          |0.19.0           |    X    |
 +-----------------+-----------------+---------+

doc/source/whatsnew/v2.0.0.rst

@@ -659,6 +659,8 @@ If installed, we now require:
 +-------------------+-----------------+----------+---------+
 | python-dateutil   | 2.8.2           |    X     |    X    |
 +-------------------+-----------------+----------+---------+
+| tzdata            | 2022.1          |on Windows|    X    |
++-------------------+-----------------+----------+---------+
 
 For `optional libraries <https://pandas.pydata.org/docs/getting_started/install.html>`_ the general recommendation is to use the latest version.
 The following table lists the lowest version per library that is currently being tested throughout the development of pandas.

environment.yml

@@ -52,7 +52,6 @@ dependencies:
   - scipy>=1.7.1
   - sqlalchemy>=1.4.16
   - tabulate>=0.8.9
-  - tzdata>=2022a
   - xarray>=0.21.0
   - xlrd>=2.0.1
   - xlsxwriter>=1.4.3
@@ -118,3 +117,4 @@ dependencies:
 
   - pip:
       - sphinx-toggleprompt
+      - tzdata>=2022.1

pyproject.toml

@@ -27,7 +27,8 @@ dependencies = [
   "numpy>=1.21.0; python_version>='3.10'",
   "numpy>=1.23.2; python_version>='3.11'",
   "python-dateutil>=2.8.2",
-  "pytz>=2020.1"
+  "pytz>=2020.1",
+  "tzdata>=2022.1; platform_system=='Windows'"
 ]
 classifiers = [
     'Development Status :: 5 - Production/Stable',

requirements-dev.txt

@@ -41,7 +41,6 @@ s3fs>=2021.08.0
 scipy>=1.7.1
 SQLAlchemy>=1.4.16
 tabulate>=0.8.9
-tzdata>=2022.1
 xarray>=0.21.0
 xlrd>=2.0.1
 xlsxwriter>=1.4.3
@@ -87,4 +86,5 @@ pyyaml
 requests
 pygments
 sphinx-toggleprompt
+tzdata>=2022.1
 setuptools>=61.0.0

scripts/validate_min_versions_in_sync.py

@@ -39,7 +39,6 @@
 EXCLUDE_DEPS = {"tzdata", "blosc"}
 EXCLUSION_LIST = {
     "python=3.8[build=*_pypy]": None,
-    "tzdata": None,
     "pyarrow": None,
 }
 # pandas package is not available