The python cProfile and pstats modules offer great support for measuring time elapsed in certain functions without having to add any code around the existing functions. For example if you …

Note that it doesn't make sense to do addition on just a time (but you can combine a date and a time into a datetime object, use that, and then get the time). DST is the major culprit. For …

Thanks! This worked great. One note for others who may be using timeit for the first time, you will need to import locally defined symbols via timeit's setup parameter. For example (if …

Oct 13, 2009 · I want to time the whole program. $ python -mtimeit -n1 -r1 -t -s "from your_module import main" "main()" It runs your_module.main() function one time and print the elapsed time …

DeprecationWarning: time.clock has been deprecated in Python 3.3 and will be removed from Python 3.8: use time.perf_counter or time.process_time instead So python will remove …

Aug 9, 2012 · Use this for calculating time: import time time_start = time.clock() #run your code time_elapsed = (time.clock() - time_start) As referenced by the Python documentation: …

Here's a solution that supports finding the difference even if the end time is less than the start time (over midnight interval) such as 23:55:00-00:25:00 (a half an hour duration):

Aug 6, 2010 · Regardless of language, monotonic time is the right answer, and real time is the wrong answer, for consistently measuring durations that aren't very long. Monotonic time …

Sep 29, 2008 · For example, in the following example, the time difference between the two datetimes is 5 hours and if we use timedelta.days to get the number of days, that difference …

Dec 12, 2013 · You have to make the difference between datetime.datetime (which is an actual date and time, for example "1899-12-30 19:45:00") and datetime.timedelta (which is a period, …