If I start a 24-hour fast at 9:00 PM, when can I eat?

Last reviewed · Jun 29, 2026 · Not medical advice
Quick answer

If you start a 24-hour fast at 9:00 PM, your fast ends at 9:00 PM the next day.

Step by step

01 Tap start at 9:00 PM.
02 Set the target duration to 24 hours.
03 Plan your first meal for 9:00 PM the next day.

The longer answer

The calculation is simple: start time + 24 hours = end time. For this example, 9:00 PM plus 24 hours equals 9:00 PM the next day. Use a timer instead of mental math so you do not keep checking the clock.

Tip

Put the end time on your lock screen or widget so fasting feels less vague.

Common mistake

Restarting the timer repeatedly because the end time was not clear.

Track in the app

Track start time, target duration, end time, and actual completion time.

Safety note
This is timing information, not medical advice. Longer fasts are not automatically better and may not be appropriate for everyone.

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