How can I convert a datetime object to milliseconds since epoch (unix time) in Python?

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Chapters
00:00 Question
00:26 Accepted answer (Score 555)
00:43 Answer 2 (Score 284)
01:17 Answer 3 (Score 104)
01:52 Answer 4 (Score 18)
02:10 Thank you

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Full question
https://stackoverflow.com/questions/6999...

Answer 1 links:
[timestamp]: https://docs.python.org/3/library/dateti...

Answer 2 links:
http://pleac.sourceforge.net/pleac_pytho...
[time.mktime]: http://docs.python.org/library/time.html...
[datetime.timetuple]: http://docs.python.org/library/datetime....

Answer 3 links:
http://delorean.readthedocs.org/en/lates...

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Content licensed under CC BY-SA
https://meta.stackexchange.com/help/lice...

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Tags
#python #datetime #epoch

#avk47

ACCEPTED ANSWER

Score 570

It appears to me that the simplest way to do this is

import datetime

epoch = datetime.datetime.utcfromtimestamp(0)

def unix_time_millis(dt):
    return (dt - epoch).total_seconds() * 1000.0

ANSWER 2

Score 107

>>> import datetime
>>> # replace datetime.datetime.now() with your datetime object
>>> int(datetime.datetime.now().strftime("%s")) * 1000 
1312908481000

Or the help of the time module (and without date formatting):

>>> import datetime, time
>>> # replace datetime.datetime.now() with your datetime object
>>> time.mktime(datetime.datetime.now().timetuple()) * 1000
1312908681000.0

Answered with help from: http://pleac.sourceforge.net/pleac_python/datesandtimes.html

Documentation:

ANSWER 3

Score 18

You can use Delorean to travel in space and time!

import datetime
import delorean
dt = datetime.datetime.utcnow()
delorean.Delorean(dt, timezone="UTC").epoch

http://delorean.readthedocs.org/en/latest/quickstart.html

ANSWER 4

Score 15

This is how I do it:

from datetime import datetime
from time import mktime

dt = datetime.now()
sec_since_epoch = mktime(dt.timetuple()) + dt.microsecond/1000000.0

millis_since_epoch = sec_since_epoch * 1000