What does this tool do?
Calculate the difference between two clock times, optionally anchored to a pair of local calendar dates. Inputs: Start time, End time, Optional start date, Optional end date. Outputs: Hours, Minutes, Seconds, Total seconds.
How to use it?
Enter both times. Supply both optional dates or neither. Choose “Calculate time difference”, then copy individual result values. Clear removes all inputs and results and restores option defaults.