python-3.x - Python - 计算两个 datetime.time 对象之间的差异

Question

我有两个 datetime.time 对象，我想计算它们之间的小时差。例如

a = datetime.time(22,00,00)
b = datetime.time(18,00,00)

我希望能够减去这些，以便它给我值 4。

Answer 1

要计算差异，您必须转换 datetime.time反对 datetime.datetime目的。然后当你减去时，你会得到一个 timedelta目的。为了找出多少小时timedelta对象是，您必须找到总秒数并将其除以 3600 .

# Create datetime objects for each time (a and b)
dateTimeA = datetime.datetime.combine(datetime.date.today(), a)
dateTimeB = datetime.datetime.combine(datetime.date.today(), b)
# Get the difference between datetimes (as timedelta)
dateTimeDifference = dateTimeA - dateTimeB
# Divide difference in seconds by number of seconds in hour (3600)  
dateTimeDifferenceInHours = dateTimeDifference.total_seconds() / 3600