如何转换字符串“ 2020-07-29 10:27:08 + 02:00”格式为“ 2020-07-29T08:27:16.494Z”? [英] How to convert string "2020-07-29 10:27:08+02:00" to this format "2020-07-29T08:27:16.494Z"?
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问题描述
我需要拥有 2020-07-29 10:27:08 + 02:00格式为 2020-07-29T08:27:16.494Z (我知道两个字符串的值是不同的,只是关于格式)。
I need to have "2020-07-29 10:27:08+02:00" in this format "2020-07-29T08:27:16.494Z" (I know the value of both strings is different, it is only about the format).
到目前为止,我已经尝试过:
I tried this so far:
dt = datetime.strptime(realTimeStamp,"%d/%b/%Y:%H:%M:%S%z")
print(dt.date()) # results to 2020-07-27
推荐答案
使用标准方法,您不会得到毫秒和 Z,因此我们需要即兴创作。
With standard methods, you don't get milliseconds and 'Z', so we need to improvise. Here's a way to do it.
from datetime import datetime, timezone
s = "2020-07-29 10:27:08.494+02:00"
# parse to datetime object including the UTC offset and convert to UTC
dt = datetime.fromisoformat(s).astimezone(timezone.utc)
# format to string, excluding microseconds and UTC offset
out = dt.strftime('%Y-%m-%dT%H:%M:%S')
# add the microseconds, rounded to milliseconds
out += f"{dt.microsecond/1e6:.3f}".lstrip('0')
# add UTC offset, Z for zulu/UTC - we know it's UTC from conversion above
out += 'Z'
这会给你
print(out)
>>> 2020-07-29T08:27:08.494Z
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