windows python中unix纪元时间到windows纪元时间的转换
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Conversion of unix epoch time to windows epoch time in python
提问by user1040625
Quick question: Is there a pythonic (whether in the standard libraries or not) way to convert unix 32-bit epoch time to windows 64-bit epoch time and back again?
快速提问：是否有 Pythonic（无论是否在标准库中）方式将 unix 32 位纪元时间转换为 Windows 64 位纪元时间并再次转换？
回答by Fred Foo
You can convert a POSIX timestamp to a datetimewith
您可以将POSIX时间戳转换为datetime与
>>> tstamp = 1325178061 # right about now
>>> from datetime import datetime
>>> datetime.fromtimestamp(tstamp)
datetime.datetime(2011, 12, 29, 18, 1, 1)
The fromtimestampnamed constructor accepts POSIX timestamps on all platforms (!).
该fromtimestamp命名构造函数接受POSIX所有平台上的时间戳（！）。
Conversion to a Windows timestamp would be a matter of subtracting the Windows epoch, which Wikipedia saysis January 1, 1601, and converting the resulting timedeltato a number of seconds:
转换为 Windows 时间戳需要减去 Windows 纪元，维基百科称其为 1601 年 1 月 1 日，并将结果转换timedelta为秒数：
>>> W_EPOCH = datetime(1601, 1, 1)
>>> (datetime.fromtimestamp(tstamp) - W_EPOCH).total_seconds()
12969655261.0
Now you've got a floatthat you convert to intand store as a 64-bit quantity in whichever way you like.
现在您已经获得了一个float可以int以任何您喜欢的方式转换并存储为 64 位数量的 。
回答by Jitsusama
To convert from a Windows EPOCH timestamp to a datetimeobject (but not the other way around); here's a solution I came up with:
从 Windows EPOCH 时间戳转换为日期时间对象（但不是相反）；这是我想出的解决方案：
from datetime import datetime, timezone
def convert_from(windows_timestamp: int) -> datetime:
unix_epoch = datetime(1970, 1, 1, tzinfo=timezone.utc)
windows_epoch = datetime(1601, 1, 1, tzinfo=timezone.utc)
epoch_delta = unix_epoch - windows_epoch
windows_timestamp_in_seconds = windows_timestamp / 10_000_000
unix_timestamp = windows_timestamp_in_seconds - epoch_delta.total_seconds()
return datetime.utcfromtimestamp(unix_timestamp)
This allows you to pass in the Windows timestamp as is and it will spit out a valid Python datetimeobject.
这允许您按原样传入 Windows 时间戳，它会输出一个有效的 Python日期时间对象。
NOTE: This is Python 3 specific.
注意：这是特定于 Python 3 的。
