Calculate a planned nap finish
The nap calculator adds your chosen minutes to the starting clock time. It shows the resulting time and notes a change of day when the duration crosses midnight.
It does not start an alarm or measure sleep. Use the nap timer to run a countdown, and include any settling time in the duration you choose.
How to use this tool
- Enter the nap start time.
- Enter the number of minutes.
- Read the wake time, then set a timer if you need an alert.
Example
A 20 minute nap starting at 13:10 finishes at 13:30. Starting a 30 minute rest at 23:45 finishes at 00:15 the next day.
Common questions
Does this page sound an alarm?
No. It calculates a clock time. Open the nap timer or online alarm clock for a browser alert.