import datetime as dt
from dateutil.relativedelta import relativedelta

start = "09:35:23"
end = "10:23:00"
start_dt = dt.datetime.strptime(start, "%H:%M:%S")
end_dt = dt.datetime.strptime(end, "%H:%M:%S")
timedelta_obj = relativedelta(start_dt, end_dt)
print(
    timedelta_obj.years,
    timedelta_obj.months,
    timedelta_obj.days,
    timedelta_obj.hours,
    timedelta_obj.minutes,
    timedelta_obj.seconds,
)

结果: 0 0 0 0 -47 -37

在Python中表示时间差的结构称为timedelta。如果你有start_time和end_time作为datetime类型，你可以使用-运算符计算两者的差异:

diff = end_time - start_time

你应该在转换成特定的字符串格式(例如。之前start_time.strftime(…))。如果您已经有字符串表示，您需要使用strptime方法将其转换回时间/日期时间。

import datetime as dt
from dateutil.relativedelta import relativedelta

start = "09:35:23"
end = "10:23:00"
start_dt = dt.datetime.strptime(start, "%H:%M:%S")
end_dt = dt.datetime.strptime(end, "%H:%M:%S")
timedelta_obj = relativedelta(start_dt, end_dt)
print(
    timedelta_obj.years,
    timedelta_obj.months,
    timedelta_obj.days,
    timedelta_obj.hours,
    timedelta_obj.minutes,
    timedelta_obj.seconds,
)

结果: 0 0 0 0 -47 -37

这个网站建议你试试:

import datetime as dt
start="09:35:23"
end="10:23:00"
start_dt = dt.datetime.strptime(start, '%H:%M:%S')
end_dt = dt.datetime.strptime(end, '%H:%M:%S')
diff = (end_dt - start_dt) 
diff.seconds/60 

这个论坛使用time.mktime()

我喜欢这家伙的做法——https://amalgjose.com/2015/02/19/python-code-for-calculating-the-difference-between-two-time-stamps。 不确定它是否有缺点。

但对我来说看起来很整洁:)

from datetime import datetime
from dateutil.relativedelta import relativedelta

t_a = datetime.now()
t_b = datetime.now()

def diff(t_a, t_b):
    t_diff = relativedelta(t_b, t_a)  # later/end time comes first!
    return '{h}h {m}m {s}s'.format(h=t_diff.hours, m=t_diff.minutes, s=t_diff.seconds)

关于这个问题，您仍然需要使用datetime.strptime()，就像其他人前面说的那样。

如果你只对24小时以内的时间感兴趣，那就简明扼要。你可以在return语句中根据需要格式化输出:

import datetime
def elapsed_interval(start,end):
    elapsed = end - start
    min,secs=divmod(elapsed.days * 86400 + elapsed.seconds, 60)
    hour, minutes = divmod(min, 60)
    return '%.2d:%.2d:%.2d' % (hour,minutes,secs)

if __name__ == '__main__':
    time_start=datetime.datetime.now()
    """ do your process """
    time_end=datetime.datetime.now()
    total_time=elapsed_interval(time_start,time_end)