Python 两个时间间隔的精确中间时间间隔
我试着在两次之间找到中间时间,这是我的代码,我试过了,但没有成功Python 两个时间间隔的精确中间时间间隔,python,average,python-datetime,Python,Average,Python Datetime,我试着在两次之间找到中间时间,这是我的代码,我试过了,但没有成功 import datetime import time start_time = datetime.datetime.now().time().strftime('5:00') end_time = datetime.datetime.now().time().strftime('7:00') total_time=(datetime.datetime.strptime(end_time,'%H:%M') + datetime.
import datetime
import time
start_time = datetime.datetime.now().time().strftime('5:00')
end_time = datetime.datetime.now().time().strftime('7:00')
total_time=(datetime.datetime.strptime(end_time,'%H:%M') +
datetime.datetime.strptime(start_time,'%H:%M'))
total_time = total_time / 2
print (total_time)
不能添加两个日期时间。Python(和大多数语言)区分时间戳和经过的时间(持续时间)。您可以执行的操作:
- 到时间戳之间的差异为您提供了持续时间
- 时间戳加上/减去持续时间会给您另一个时间戳
- 持续时间算术:加,减去另一个持续时间,乘,除以常数
编辑:适用于开始时间在结束时间之后的情况(因此开始时间实际上在第二天)
strftime()
的参数不正确。它应该是一个类似于%H:%M
的格式字符串。实际上并不是在格式化时间,它们相当于start\u time='5:00'
和end\u time='7:00'
。首先调用所有datetime函数有什么意义?
import datetime
import time
start_time = datetime.datetime.now().time().strftime('5:00')
end_time = datetime.datetime.now().time().strftime('7:00')
time1 = datetime.datetime.strptime(start_time,'%H:%M')
time2 = datetime.datetime.strptime(end_time,'%H:%M')
duration = time2 - time1
midtime = time1 + duration/2
print(midtime.strftime("%H:%M"))
# output
#06:00
import datetime
def midtime(time1, time2):
# advance start time by 1 day if the start time is after the end time
if time1 > time2:
time1 += datetime.timedelta(1)
duration = time2 - time1
midtime = time1 + duration/2
return midtime.strftime("%H:%M")
stime = datetime.datetime.strptime
print('Midtime between 8pm and 6am is', midtime(stime('20:00', '%H:%M'), stime('6:00', '%H:%M')))
print('Midtime between 7pm and 5am is', midtime(stime('19:00', '%H:%M'), stime('5:00', '%H:%M')))
print('Midtime between 6am and 8pm is', midtime(stime('6:00', '%H:%M'), stime('20:00', '%H:%M')))
print('Midtime between 5am and 7pm is', midtime(stime('5:00', '%H:%M'), stime('19:00', '%H:%M')))
# output
#Midtime between 8pm and 6am is 01:00
#Midtime between 7pm and 5am is 00:00
#Midtime between 6am and 8pm is 13:00
#Midtime between 5am and 7pm is 12:00