关于Python:Python – 日期时间不能正确计算闰秒?

Python - Datetime not accounting for leap second properly?

我正在分析一些具有闰秒时间戳datetime 2012-06-30T23:59:60.209215的数据。我使用以下代码分析该字符串并将其转换为日期时间对象:

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    nofrag, frag = t.split('.')
    nofrag_dt = datetime.datetime.strptime(nofrag,"%Y-%m-%dT%H:%M:%S")
    dt = nofrag_dt.replace(microsecond=int(frag))

python文档声称这不应该是一个问题,因为%S接受[0, 61]。但是,我得到上面时间戳的这个错误

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nofrag_dt = datetime.datetime.strptime(nofrag,"%Y-%m-%dT%H:%M:%S")
ValueError: second must be in 0..59

谢谢


%S的文档显示:

Unlike the time module, the datetime module does not support leap seconds.

时间字符串"2012-06-30T23:59:60.209215"表示时间采用的是UTC(这是当前的最后一个闰秒):

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import time
from calendar import timegm
from datetime import datetime, timedelta

time_string = '2012-06-30T23:59:60.209215'
time_string, dot, us = time_string.partition('.')
utc_time_tuple = time.strptime(time_string,"%Y-%m-%dT%H:%M:%S")
dt = datetime(1970, 1, 1) + timedelta(seconds=timegm(utc_time_tuple))
if dot:
    dt = dt.replace(microsecond=datetime.strptime(us, '%f').microsecond)
print(dt)
# -> 2012-07-01 00:00:00.209215


执行此操作:

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import time
import datetime
t = '2012-06-30T23:59:60.209215'
nofrag, frag = t.split('.')
nofrag_dt = time.strptime(nofrag,"%Y-%m-%dT%H:%M:%S")
ts = datetime.datetime.fromtimestamp(time.mktime(nofrag_dt))
dt = ts.replace(microsecond=int(frag))
print(dt)

输出为:

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2012-07-01 00:00:00.209215