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Drop-in replacement for timezone aware datetime objects

Project description

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Module providing a timezone aware datetime.datetime compatible object.
Supports CPython 2.6 - 3.5 and PyPy.


  • Drop-in replacement for datetime.datetime

  • Simple implementation that leverages the built-in datetime module as much as possible

  • Excellent test coverage


datetime.datetime objects aren’t aware by default.
New projects should always use timezone aware datetime.datetime objects, but the Python standard library doesn’t make that easy. AwareDatetime is here to help!

You may also have existing code that needs to become timezone aware and migrating code to become timezone aware is tricky.
Using AwareDatetime will help you track what code has been migrated to support timezone.


A drop-in replacement for datetime.datetime that always provide timezone aware objects.

Example Usage

>>> from awaredatetime import AwareDatetime
>>> AwareDatetime(2016, 1, 1)
AwareDatetime(2016, 1, 1, 0, 0, tzinfo=<UTC>)
>>> import datetime
>>> AwareDatetime.from_datetime(datetime.datetime(2016, 1, 1))
AwareDatetime(2016, 1, 1, 0, 0, tzinfo=<UTC>)


Not implemented since times with a timezone don’t make sense.
e.g. What’s the expected behavior for coverting 24:00:00+00:00 to positive UTC offset?


The only dependency is pytz. We recommend that you use the latest version of pytz, but this package will not force that upon you.

Migrating Existing Code

Similar work

  • datetime_tz - Another timezone aware drop-in replacement for the datetime module, but overrides more datetime behavior

  • arrow - An API-compatible re-write of the datetime module



  • Do not change the CHANGELOG file or __version__ in awaredatetime/ This is the responsibility of the repo and package owners.

  • Before adding a dependency, open an issue to discuss why the dependency is needed.

  • Follow the Google Python Style Guide.


  1. Setup the development environment

    pip install -U -r
  2. Make your changes

  3. Add unittests for your changes

  4. Run tests, which will also check the coding style

    coverage run --source=awaredatetime test_dev
  5. Once tests pass, ensure that your changes have proper test coverage

    coverage html && ls htmlcov/index.html
  6. Open a PR


0.0.2 (2016-06-20)

  • Change how package versioning is determined

0.0.1 (2016-06-20)

  • Initial commit

    • AwareDatetime is compatible with all known datetime.datetime methods and constants

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