[Python-Dev] Status on PEP-431 Timezones (original) (raw)

Akira Li 4kir4.1i at gmail.com
Wed Apr 15 22:24:03 CEST 2015


Isaac Schwabacher <ischwabacher at wisc.edu> writes:

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I know that you can do datetime.now(tz), and you can do datetime(2013, 11, 3, 1, 30, tzinfo=zoneinfo('America/Chicago')), but not being able to add a time zone to an existing naive datetime is painful (and strptime doesn't even let you pass in a time zone).

.now(tz) is correct. datetime(..., tzinfo=tz)) is wrong: if tz is a pytz timezone then you may get a wrong tzinfo (LMT), you should use tz.localize(naive_dt, is_dst=False|True|None) instead.

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