Which fasting protocols are supported?

16:8, 14:10, 18:6, 20:4, OMAD (23:1), and Custom (set fasting and eating hours).

Does this send notifications?

This tool runs in your browser; results are stored locally. For alarms, keep the tab open or use your phone alarm alongside.

Is this medical advice?

No. Intermittent fasting isn’t for everyone. Consult a healthcare professional, especially if you have medical conditions, are pregnant, or on medication.

Intermittent Fasting Timer

Start a fast, watch a live countdown with a circular gauge, and see exactly when your eating window opens and closes.

Name (Optional)

Upload Image (Optional)

Fasting Protocol

Custom fasting hours (if Custom)

Custom eating hours (if Custom)

Start time (optional)

Leave empty to start from “Now”.

Your live fasting timer and schedule will appear here.

Guidance & FAQ

Popular start times?

Many begin after dinner (e.g., 8:00 PM) so the overnight hours cover most of the fast.

Can I log completed fasts?

Use Save result at the end of a fast; you can revisit sessions via Result History.

Tips for fasting comfortably

🥤 Hydrate, ☕ unsweetened tea/coffee, 🧂 electrolytes if needed, 🚶 light activity, 😴 sleep well.