如何获取与当前时区对应的tz_info对象？

Question

python(或pytz)中是否存在跨平台功能,它返回tzinfo与当前在计算机上设置的时区对应的对象？

环境变量不能指望,因为它们不是跨平台的

Answer 1

>>> import datetime
>>> today = datetime.datetime.now()
>>> insummer = datetime.datetime(2009,8,15,10,0,0)
>>> from pytz import reference
>>> localtime = reference.LocalTimezone()
>>> localtime.tzname(today)
'PST'
>>> localtime.tzname(insummer)
'PDT'
>>> 

Answer 2

tzlocal返回pytz时区的模块适用于*nix和win32:

from datetime import datetime
from tzlocal import get_localzone # $ pip install tzlocal

# get local timezone    
local_tz = get_localzone() 


print local_tz.localize(datetime(2012, 1, 15))
# -> 2012-01-15 00:00:00+04:00 # current utc offset
print local_tz.localize(datetime(2000, 1, 15))
# -> 2000-01-15 00:00:00+03:00 # past utc offset (note: +03 instead of +04)
print local_tz.localize(datetime(2000, 6, 15))
# -> 2000-06-15 00:00:00+04:00 # changes to utc offset due to DST

注意:它考虑了DST和非DST utc偏移量变化.

Answer 3

蟒蛇 3.7：

import datetime

datetime.datetime.now().astimezone().tzinfo

Answer 4

time.timezone返回当前时区偏移量。datetime.tzinfo如果您需要更复杂的结构，还有一个。