Subtract datetime and timedelta in Python

Asked Jan 22 '14 at 05:36

Active Jan 22 '14 at 05:45

Viewed 72 times

I am storing the TimeField in Django with which I want to subtract some minutes and later update the database. This is what I am doing now which results in TpeError: unsupported operand type(s) for -: 'datetime.time' and 'datetime.timedelta'

>>> s.start_time
datetime.time(1, 0)
>>> from datetime import timedelta
>>> s.start_time - timedelta(minutes=30)
Traceback (most recent call last):
  File "<console>", line 1, in <module>
TypeError: unsupported operand type(s) for -: 'datetime.time' and 'datetime.timedelta'

What's wrong?

asked Jan 22 '14 at 05:36

pynovice

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Python doesn't support time arithmatic for good reason, the linked answer has some work arounds you can use. – Jan 22 '14 at 05:45
Yes, thanks for the link. – pynovice Jan 22 '14 at 05:53

Subtract datetime and timedelta in Python

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