Pythonic way to combine datetime.date and datetime.time objects

Question

I have two objects that represent the same event instance --- one holds the date, the other the time of this event, and I want to create a datetime object.

Since one can't simply add date and time objects (following call fails):

 datetime.date(2011, 01, 01) + datetime.time(10, 23)

See [What is the standard way to add N seconds to datetime.time in Python?](https://stackoverflow.com/q/100210/562769) — Martin Thoma, Dec 07 '17 at 07:26

score 466 · Accepted Answer · edited Dec 18 '17 at 03:52

466

It's in the python docs.

import datetime
datetime.datetime.combine(datetime.date(2011, 1, 1), 
                          datetime.time(10, 23))

returns

datetime.datetime(2011, 1, 1, 10, 23)

edited Dec 18 '17 at 03:52

Brad Solomon

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answered Dec 12 '11 at 12:59

eumiro

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5

This loses the tzinfo though (if the date has one). Is there a way to keep it? – ypercubeᵀᴹ Apr 11 '19 at 08:43
And in Python 3? Can't find `combine()` – Olivier Pons Sep 12 '19 at 12:33
@OlivierPons nothing has changed in Python3: https://docs.python.org/3/library/datetime.html#datetime.datetime.combine – eumiro Sep 12 '19 at 13:15
I'm sorry you're right, `combine()` can be applied to a `datetime` value. Thanks a lot – Olivier Pons Sep 12 '19 at 13:52
add timezone info: https://stackoverflow.com/a/7065242/2544138 – NathanQ Apr 13 '21 at 15:45
In Python 3.6, you can use the `tzinfo` argument to preserve timezone: https://docs.python.org/3/library/datetime.html#datetime.datetime.combine – Akshat Mahajan Jan 03 '22 at 23:18

Pythonic way to combine datetime.date and datetime.time objects

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