截断Python DateTime [英] Truncate Python DateTime

问题描述

截取python datetime对象的方法是什么？

What is a classy way to way truncate a python datetime object?

在这种特殊情况下，到当天。所以基本上设置小时，分，秒和微秒为0。

In this particular case, to the day. So basically setting hour, minute, seconds, and microseconds to 0.

我希望输出也是一个datetime对象，而不是字符串。

I would like the output to also be a datetime object, not a string.

推荐答案

我认为这是你要找的...

I think this is what you're looking for...

>>> dt = datetime.datetime.now()
>>> dt = dt.replace(hour=0, minute=0, second=0, microsecond=0) # Returns a copy
>>> dt
datetime.datetime(2011, 3, 29, 0, 0)

但是你真的不在乎时间方面的事情，那么你应该真的只是绕过日期对象...

But if you really don't care about the time aspect of things, then you should really only be passing around date objects...

>>> d_truncated = datetime.date(dt.year, dt.month, dt.day)
>>> d_truncated
datetime.date(2011, 3, 29)

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