13-Hour Widget Fasting Timer
A 13-hour fasting timer counts from your start time to your end time. If you start at 8:00 PM, a 13-hour fast ends at 9:00 AM the next day.
This page gives a simple 13-hour timer example and explains when a fasting app is better than mental math or alarms.
How to set the timer
Why use this timer
A widget-style timer is useful when you want progress at a glance instead of opening the app again and again.
Common mistakes
How Fast Goblin helps
Fast Goblin turns a 13-hour fast into a clear progress screen with start time, end time, reminders, and history, so the timer feels easy to repeat.
How Fast Goblin helps
Fast Goblin turns a 13-hour fast into a clear progress screen with start time, end time, reminders, and history, so the timer feels easy to repeat.
Common questions
How long is a 13-hour fast?
It is exactly 13 hours from the moment you start the timer.
Can I start the timer at any time?
Yes. The duration matters more than the sample start time.
Is this medical advice?
No. This page is for tracking and planning only.
Fast Goblin is a tracking app, not medical advice. Intermittent fasting is not for everyone; people who are under 18, pregnant or breastfeeding, have a history of eating disorders, or use insulin/diabetes medication should talk to a qualified professional before changing fasting routines.