Find exact hours, minutes and seconds between any two times
Enter a start time and end time using 24-hour or 12-hour format. The calculator instantly returns the hours between the two times, along with the total minutes and total seconds. No button click required — results update as you type.
For shifts that cross midnight — like 10 PM to 6 AM — enable the "crosses midnight" checkbox. The calculator will automatically add 24 hours to the calculation so you get the correct 8-hour result instead of a negative number.
This time duration calculator is ideal for calculating hours worked, timing events, tracking shift lengths, or any situation where you need to know the exact elapsed time between two points.
Calculate your shift duration for timesheet entry, freelance billing, or payroll verification.
Quickly find how long a meeting ran from start time to end time, in minutes and seconds.
Nurses, security staff, and other night shift workers need accurate cross-midnight duration calculations.
Find the exact duration of a concert, game, race, or any event with a clear start and end time.
Calculate how long something has been cooking or how long until a timer completes from a given start time.
Determine the exact elapsed travel time between departure and arrival in hours and minutes.
Enter a start time and end time using the inputs above. The calculator instantly shows the duration in hours, minutes, and seconds, plus the total minutes and total seconds.
Check the "Duration crosses midnight" option. The calculator will then add 24 hours to the calculation, giving you the correct duration for overnight shifts or time spans that cross into the next day.
From 9:00 AM to 5:00 PM is exactly 8 hours, or 480 minutes, or 28,800 seconds.
Enter your clock-in time as the start and clock-out time as the end. The result shows your exact hours and minutes worked. For multiple shifts, run the calculator once per shift and add the results.
Yes. Enable the "crosses midnight" option. For example, 10:00 PM to 6:00 AM would show 8 hours duration instead of trying to calculate a negative number.