Time Calculator - Time Between Two Dates, Add & Subtract Time between Two Times

Calculate the duration between two times, Use this time calculator to find out the number of days, hours, minutes, and seconds between the times on two different dates.

Time Between Two Dates

Start Time:
Hour Minute Second

End Time :
Hour Minute Second

The time between Jan. 1, 2024, 0:0:0 and Dec. 21, 2024, 20:36:20 is:

Two time differences	355 days, 20 hours, 36 minutes, and 36 seconds
Difference in days	355.8587500000 days
Difference in hours	8540.6100000000 hours
Difference in minutes	512436.6000000000 minutes
Difference in seconds	30746196 seconds

Add Or Subtract Time From A Date

The calculator will help you schedule your plans by adding or subtracting the custom time inputs from a start time & date.

Add/Subtract Times In Hours, Minutes, And Aeconds

If "Using 24 Hour Time" is checked, the time will be recalculated from 0 hours if it exceeds 24 hours. Otherwise, the time will be accumulated.

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