Sleep tool
Sleep Duration Calculator
Enter bedtime and wake-up time to calculate the total time between them.
How long will you sleep?
Overnight times are handled automatically
If your wake-up time is earlier on the clock than your bedtime, the calculator treats the wake-up time as the following day.
This calculates elapsed time between the two clock times. Actual time asleep can be shorter because people may take time to fall asleep or wake during the night.