Python datetime对象显示错误的时区偏移 [英] Python datetime object show wrong timezone offset

问题描述

我尝试使用datetime和pytz在python中创建一个datetime对象，显示的偏移是错误的。

I am try creating a datetime object in python using datetime and pytz, the offset shown is wrong.

import datetime
from pytz import timezone

start = datetime.datetime(2011, 6, 20, 0, 0, 0, 0, timezone('Asia/Kolkata'))
print start

显示的输出是

datetime.datetime(2011, 6, 20, 0, 0, tzinfo=<DstTzInfo 'Asia/Kolkata' HMT+5:53:00 STD>)

请注意，亚洲/加尔各答是IST，GMT + 5：30，而不是HMT + 5：53。这是一个标准的linux时区，为什么我错了，我该如何解决？

Note that 'Asia/Kolkata' is IST which is GMT+5:30 and not HMT+5:53. This is a standard linux timezone, why do I get this wrong, and how do I solve it?

推荐答案

href =http://bytes.com/topic/python/answers/676275-pytz-giving-incorrect-offset-timezone =noreferrer> http://bytes.com/topic/python/answers/676275 -pytz-give-incorrect-offset-timezone

See: http://bytes.com/topic/python/answers/676275-pytz-giving-incorrect-offset-timezone

在评论中，有人建议使用 tzinfo.localize（）而不是 datetime 构造函数，这是一个诀窍。

In the comments, someone proposes to use tzinfo.localize() instead of the datetime constructor, which does the trick.

>>> tz = timezone('Asia/Kolkata')
>>> dt = tz.localize(datetime.datetime(2011, 6, 20, 0, 0, 0, 0))
>>> dt
datetime.datetime(2011, 6, 20, 0, 0, tzinfo=<DstTzInfo 'Asia/Kolkata' IST+5:30:00 STD>)

更新：其实，官方pytz网站表示，您应该始终使用 localize 或 astimezone 而不是传递时区对象到 datetime.datetime 。

UPDATE: Actually, the official pytz website states that you should always use localize or astimezone instead of passing a timezone object to datetime.datetime.

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