The Python standard library module datetime seems to be what you want.  It has objects representing date/times, and deltatimes (i.e., durations).  These can be timezone aware or not as you wish.

Dr. Gary Herron
Professor of Computer Science
DigiPen Institute of Technology

On 3/27/23 6:00 AM, loris.benn...@fu-berlin.de wrote:
Hi,

I have been around long enough to know that, due to time-zones, daylight
saving and whatnot, time-related stuff is complicated.  So even if I
think something connected with time should exist, there may well be a
very good reason why it does not.

My problem:

   I need to deal with what I call a 'period', which is a span of time
   limited by two dates, start and end.  The period has a 'duration',
   which is the elapsed time between start and end.  The duration is
   essentially a number of seconds, but in my context, because the
   durations are usually hours or days, I would generally want to display
   the duration in a format such as "dd-hh:mm:ss"

My (possibly ill-founded) expectation:

   There is a standard class which encapsulates this sort of functionality.

My (possibly insufficiently researched) conclusion:

   Such a standard class does not exist.

What is at fault here?  My expectation or my conclusion?

Cheers,

Loris

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