python datetime.time operation
t1 = datetime.time(12, 10, 0, tzinfo=GMT1()) # 12:10
t2 = datetime.time(13, 13, 0, tzinfo=GMT1()) #13:13
t3 = datetime.time(23, 55, 0, tzinfo=GMT1()) #23:55
t4 = datetime.time(01, 10, 0, tzinfo=GMT1()) #01:10
I need the minute interval between between two times. For instance a non working one:
def minute_interval(start,end):
return end - start
minute_interval(t1,t2) #should give 63 mins.
Also if the end time is smaller than start, it should do the calculation by understaing the end is from the next days time. ie:
minute_int开发者_JAVA百科erval(t3,t4) #should give 75 mins.
How can this be achieved ? I need to rewrite the minute_interval function for this aim.
Assuming time are in same timezone and no DST
import datetime
def minute_interval(start, end):
reverse = False
if start > end:
start, end = end, start
reverse = True
delta = (end.hour - start.hour)*60 + end.minute - start.minute + (end.second - start.second)/60.0
if reverse:
delta = 24*60 - delta
return delta
t1 = datetime.time(12, 10, 0) # 12:10
t2 = datetime.time(13, 13, 0) #13:13
t3 = datetime.time(23, 55, 0) #23:55
t4 = end = datetime.time(01, 10, 0) #01:10
print minute_interval(t1, t2)
print minute_interval(t3, t4)
output:
63
75
otherwise you are better of using datetime.datetime, which supports subtraction and gives datetime.timedelta, for timezone you can use pytz library.
How's this?
def minute_interval(start,end):
start_sec= (start.hour*60+start.minute)*60+start.second
end_sec= (end.hour*60+end.minute)*60+end.second
return (end_sec-start_sec)/60.0
>>> import datetime
>>> t1 = datetime.time(12, 10, 0)
>>> t2 = datetime.time(13, 13, 0)
>>> today = datetime.datetime.today()
>>> t1n = datetime.datetime.combine(today, t1)
>>> t2n = datetime.datetime.combine(today + datetime.timedelta(days=int(t2 < t1)), t2)
>>> d = t2n - t1n
>>> (d.days * 86400 + d.seconds) // 60
63
精彩评论