How do I check the difference in seconds between two dates

Question

There has to be an easier way to do this  I have objects that want to be refreshed every so often  so I want to record when they were created  check against the current timestamp  and refresh as necessary    datetime datetime has proven to be difficult  and I don t want to dive into the ctime library  Is there anything easier for this sort of thing

User · Answer

gt  gt  gt  from datetime import datetime   gt  gt  gt   a   datetime now      wait a bit   gt  gt  gt  b   datetime now     gt  gt  gt  d   b - a   yields a timedelta object  gt  gt  gt  d seconds 7    7 will be whatever amount of time you waited a bit above   I find datetime datetime to be fairly useful  so if there s a complicated or awkward scenario that you ve encountered  please let us know   EDIT  Thanks to  WoLpH for pointing out that one is not always necessarily looking to refresh so frequently that the datetimes will be close together  By accounting for the days in the delta  you can handle longer timestamp discrepancies    gt  gt  gt  a   datetime 2010  12  5   gt  gt  gt  b   datetime 2010  12  7   gt  gt  gt  d   b - a  gt  gt  gt  d seconds 0  gt  gt  gt  d days 2  gt  gt  gt  d seconds   d days   86400 172800

User · Answer

if you want to compute differences between two known dates  use total seconds like this   import datetime as dt  a   dt datetime 2013 12 30 23 59 59  b   dt datetime 2013 12 31 23 59 59    b-a  total seconds     86400 0   note that seconds doesn t give you what you want   b-a  seconds   0

User · Answer

Another approach is to use timestamp values  end time timestamp   - start time timestamp

User · Answer

import time   current   time time       job    end   time time   diff   end - current   would that work for you

User · Answer

Here s the one that is working for me   from datetime import datetime  date format     H  M  S     You could also pass datetime time object in this part and convert it to string  time start   str  09 00 00    time end   str  18 00 00      Then get the difference here      diff   datetime strptime time end  date format  - datetime strptime time start  date format     Get the time in hours i e  9 60  8 5 result   diff seconds   3600    Hope this helps

User · Answer

We have function total seconds   with Python 2 7 Please see below code for python 2 6  import datetime import time    def diffdates d1  d2        Date format   Y- m- d  H  M  S     return  time mktime time strptime d2   Y- m- d  H  M  S    -                time mktime time strptime d1    Y- m- d  H  M  S      d1   datetime now   d2   datetime now     timedelta days 1  diff   diffdates d1  d2

[python] How do I check the difference, in seconds, between two dates?

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