如何在python中减去日期时间/时间戳 [英] How to subtract datetimes / timestamps in python

问题描述

看起来应该很简单，但对于我的一生，我找不到答案。我从数据库中提取了两个日期时间/时间戳：

Seems like this should be so simple but for the life of me, I can't find the answer. I pull two datetimes/timestamps from the database:

2015-08-10 19:33:27.653
2015-08-10 19:31:28.209

如何从第二个减去第一个，最好是从结果中减去以毫秒为单位？是的，我也有日期，因为我也需要它在午夜左右工作。

How do I subtract the first from the second, preferably the result being in milliseconds? And yes, I have the date in there, too, because I need it to work at around midnight, as well.

推荐答案

将您的字符串解析为 datetime.datetime 对象并减去它们：

Parse your strings as datetime.datetime objects and subtract them:

from datetime import datetime

d1 = datetime.strptime("2015-08-10 19:33:27.653", "%Y-%m-%d %H:%M:%S.%f")
d2 = datetime.strptime("2015-08-10 19:31:28.209", "%Y-%m-%d %H:%M:%S.%f")

print(d1 - d2)

给我：

0:01:59.444000

还要查看 timedelta 有关所有可能操作的文档。

Also check out timedelta documentation for all possible operations.

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