Easily determine the exact duration between any two clock times with our online Clock Duration Calculator. Simply input your start and end times to quickly calculate the total hours, minutes, and seconds, perfect for tracking work shifts, event lengths, or daily tasks, even if they span into the next day.
Formula:
The calculator determines the duration by subtracting the Start Time (Tstart) from the End Time (Tend). If Tend is numerically earlier than Tstart, the calculator automatically adds 24 hours to Tend to correctly account for durations that span into the next day.
Duration = (Tend - Tstart) + (24 Hours if Tend < Tstart)