Intermittent Fasting Timer
A live Intermittent Fasting Timer that tracks your fasting and eating windows in real time. Choose a popular schedule — 16:8, 18:6, 20:4, 14:10, or OMAD (23:1) — or set custom fasting and eating hours. Start the timer and watch your progress bar fill as you fast, then automatically switch to the eating window. Includes elapsed and remaining time, a live clock schedule, and automatic persistence of your current fast in your browser. Everything runs on your device — private and mobile-friendly.
Choose a schedule
Most popular — skip breakfast, eat within 8 hours.
No fast running
Pick a schedule (16:8, 18:6…) and press Start Fast to begin tracking.
Choose a schedule
Most popular — skip breakfast, eat within 8 hours.
Frequently Asked Questions
Everything you need to know about intermittent fasting
What is intermittent fasting?
Which schedule should I pick?
Does fasting burn more fat or change metabolism?
Is my data private?
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