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| -rw-r--r-- | Doc/library/datetime.rst | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/Doc/library/datetime.rst b/Doc/library/datetime.rst index b80c6a85e7..1c4e9b92c1 100644 --- a/Doc/library/datetime.rst +++ b/Doc/library/datetime.rst @@ -1560,11 +1560,18 @@ only EST (fixed offset -5 hours), or only EDT (fixed offset -4 hours)). .. seealso:: `pytz <http://pypi.python.org/pypi/pytz/>`_ - The Standard Library has no :class:`tzinfo` instances except for UTC, but - it exists a third-party library which brings Olson timezone database to - Python: `pytz`. - - `pytz` contains up-to-date information and its usage is recommended. + The standard library has no :class:`tzinfo` instances except for UTC, but + there exists a third-party library which brings the *IANA timezone + database* (also known as the Olson database) to Python: *pytz*. + + *pytz* contains up-to-date information and its usage is recommended. + + `IANA timezone database <http://www.iana.org/time-zones>`_ + The Time Zone Database (often called tz or zoneinfo) contains code and + data that represent the history of local time for many representative + locations around the globe. It is updated periodically to reflect changes + made by political bodies to time zone boundaries, UTC offsets, and + daylight-saving rules. .. _datetime-timezone: |