如何`strftime`调整时区？ [英] How to `strftime` having timezone adjusted?

问题描述

我这样存储我的datetime int UTC：

I store my datetime int UTC like so:

import pytz, datetime

timeUTC = datetime.datetime(2013, 5, 23, 19, 27, 50, 0)
timezoneLocal = pytz.timezone('Europe/Vilnius')

timeLocal = timezoneLocal.localize(timeUTC)

但是当我尝试打印时，它只是给我提供常规的UTC时间

But when I try to print it, it just gives me regular UTC hours

>>> timeLocal.strftime('%H:%M:%S')
'19:27:50'

我希望这会返回 '22：27：50'，因为这是当地时间（ pytz.timezone（'Europe / Vilnius'）现在是+3）。我在这里缺少什么？

I would expect this to return '22:27:50' since this is the local time (pytz.timezone('Europe/Vilnius') is +3 at the moment). What am I missing here?

推荐答案

将日期字符串本地化为UTC日期时间，然后使用 astimezone 转换为本地时区。

Localize the date string as a UTC datetime, then use astimezone to convert it to the local timezone.

import pytz, datetime

timeUTC = datetime.datetime(2013, 5, 23, 19, 27, 50, 0)
timezoneLocal = pytz.timezone('Europe/Vilnius')
utc = pytz.utc
timeLocal = utc.localize(timeUTC).astimezone(timezoneLocal)
print(timeLocal)
# 2013-05-23 22:27:50+03:00

本地化不会转换日期时间，它将日期字符串解释为尽管它是在那个时区写的。 localize 可以在朴素的日期时间（例如 timeUTC ）中构建时区感知日期时间。 astimezone 将可识别时区的日期时间转换为其他时区。

localize does not convert datetimes, it interprets the date string as though it were written in that timezone. localize builds a timezone-aware datetime out of a naive datetime (such as timeUTC). astimezone converts timezone-aware datetimes to other timezones.

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