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

Question

I have a Python datetime object that I want to convert to unix time  or seconds milliseconds since the 1970 epoch   How do I do this

User · Answer

import time seconds since epoch   time mktime your datetime timetuple      1000

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A bit of pandas code   import pandas  def to millis dt       return int pandas to datetime dt  value   1000000

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This other solution for covert datetime to unixtimestampmillis   private static readonly DateTime UnixEpoch   new DateTime 1970  1  1  0  0  0  DateTimeKind Utc        public static long GetCurrentUnixTimestampMillis                 DateTime localDateTime  univDateTime          localDateTime   DateTime Now                    univDateTime   localDateTime ToUniversalTime            return  long  univDateTime - UnixEpoch  TotalMilliseconds

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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  nbsp

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gt  gt  gt  import datetime  gt  gt  gt    replace datetime datetime now   with your datetime object  gt  gt  gt  int datetime datetime now   strftime   s      1000  1312908481000   Or the help of the time module  and without date formatting     gt  gt  gt  import datetime  time  gt  gt  gt    replace datetime datetime now   with your datetime object  gt  gt  gt  time mktime datetime datetime now   timetuple      1000 1312908681000 0   Answered with help from  http   pleac sourceforge net pleac python datesandtimes html  Documentation    time mktime datetime timetuple

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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

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Recommendedations from the Python 2 7 docs for the time module

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In Python 3 3  added new method timestamp   import datetime seconds since epoch   datetime datetime now   timestamp     Your question stated that you needed milliseconds  which you can get like this   milliseconds since epoch   datetime datetime now   timestamp     1000   If you use timestamp on a naive datetime object  then it assumed that it is in the local timezone  Use timezone-aware datetime objects if this is not what you intend to happen

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gt  gt  gt  import datetime  gt  gt  gt  import time  gt  gt  gt  import calendar   gt  gt  gt   your datetime object  gt  gt  gt  now   datetime datetime now    gt  gt  gt  now datetime datetime 2013  3  19  13  0  9  351812    gt  gt  gt   use datetime module s timetuple method to get a  time struct time  object  1   gt  gt  gt  tt   datetime datetime timetuple now   gt  gt  gt  tt time struct time tm year 2013  tm mon 3  tm mday 19  tm hour 13  tm min 0  tm sec 9      tm wday 1  tm yday 78  tm isdst -1    gt  gt  gt   If your datetime object is in utc you do this way   2  see the first table on docs   gt  gt  gt  sec epoch utc   calendar timegm tt    1000  gt  gt  gt  sec epoch utc 1363698009   gt  gt  gt   If your datetime object is in local timeformat you do this way  gt  gt  gt  sec epoch loc   time mktime tt    1000  gt  gt  gt  sec epoch loc 1363678209 0    1  http   docs python org 2 library datetime html datetime date timetuple   2  http   docs python org 2 library time html

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Here s another form of a solution with normalization of your time object   def to unix time timestamp       epoch   datetime datetime utcfromtimestamp 0    start of epoch time     my time   datetime datetime strptime timestamp    Y  m  d  H  M  S  f     plugin your time object     delta   my time - epoch     return delta total seconds     1000 0

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from datetime import datetime from calendar import timegm    Note  if you pass in a naive dttm object it s assumed to already be in UTC def unix time dttm None       if dttm is None         dttm   datetime utcnow        return timegm dttm utctimetuple     print  Unix time now   d    unix time   print  Unix timestamp from an existing dttm   d    unix time datetime 2014  12  30  12  0

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Here is a function I made based on the answer above  def getDateToEpoch myDateTime       res    datetime datetime myDateTime year myDateTime month myDateTime day myDateTime hour myDateTime minute myDateTime second  - datetime datetime 1970 1 1   total seconds       return res   You can wrap the returned value like this   str int res    To return it without a decimal value to be used as string or just int  without the str

User · Answer

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

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

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