There are probably four main options from Date::Calc, Time::Piece, DateTime, and Date::Manip. Here's one of them off the top of my head for tomorrow (Friday) to next Wednesday at the times you suggested‐ Update: not working time here, so definitely not what you want though Mktime is a to_epoch routine.

perl -MDate::Calc=Mktime -E 'say abs Mktime(2017,11,24,16,33,0) - Mkti
+me(2017,11,29,17,10,0)'
434220
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