如何从Python中获取UTC格式的文件修改日期

Question

我想从Python中获取一个UTC格式的文件的修改日期。下面的代码返回我的Linux配置时区(GMT-5)中的日期。我想要UTC格式的。或者我如何让操作系统配置的时区将其转换为pytz？

$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:09:56) 
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from datetime import datetime
>>> import os
>>> dt=os.path.getmtime('/home/user/.bashrc')
>>> datetime.datetime.fromtimestamp(dt)
datetime(2012, 5, 30, 21, 18, 10)

谢谢

Answer 1

试试datetime.datetime.utcfromtimestamp

import datetime
import os
dt=os.path.getmtime('/home/me/.bashrc')
print (datetime.datetime.fromtimestamp(dt))
print (datetime.datetime.utcfromtimestamp(dt))

Answer 2

使用您当地的时区来代替"America/New_York“，下面的代码应该可以解决这个问题。

In [11]: import datetime, pytz

In [12]: right_now = datetime.datetime.now()

In [13]: right_now_utc = right_now.replace(tzinfo=pytz.timezone("America/New_York")).astimezone(pytz.utc)

In [14]: right_now
Out[14]: datetime.datetime(2012, 7, 9, 20, 31, 21, 999536)

In [15]: right_now_utc
Out[15]: datetime.datetime(2012, 7, 10, 1, 31, 21, 999536, tzinfo=<UTC>)