OMAD fasting timer
A one-meal-a-day (OMAD) timer in this browser. OMAD is a short eating window, often treated as about 23 hours fasting. It is not a dare. End Fast when you eat, or when you should stop. Not medical advice.
Free. No signup. Runs in this browser.
The timer widget on this page is pre-selected for this protocol. Use Start Fast when JavaScript is on.
This URL is the OMAD clock. The chip is pre-selected for one meal a day (about 23 hours on this timer). It is not a 16:8 with a tighter slogan. If you wanted an 8-hour eating window, use the 16:8 fasting timer.
OMAD is a bigger jump than skipping breakfast. Who should be careful with fasting still applies. End Fast when you eat, or when you should stop. Longer is not automatically better. Choosing a starting window is the calmer first step for most people.
Water is the default in the closed hours. Black coffee and unsweetened tea are optional. The one meal is still a meal: enough food, not a prize binge. Eating in the window covers that without a diet plan. Shared meals and travel: Keeping a window in real life. Definition first: What is intermittent fasting?. Training beside one meal a day: Exercise and fasting.
Questions
What does OMAD mean?
OMAD means one meal a day: most calories in one sitting and a long gap around it. On this timer the OMAD chip is a ~23-hour goal. It is a clock, not a prescription.
How is OMAD different from 16:8?
16:8 is an 8-hour eating window. OMAD compresses eating into roughly one meal. That is a bigger jump than skipping breakfast. See Common fasting schedules if you want the comparison without a ranking.
What can I drink?
Water is the default. Black coffee or unsweetened tea are optional. Calories in the cup end a strict fast.
Who should not try this unsupervised?
Do not start unsupervised if you are pregnant or breastfeeding, under 18, underweight, or living with an eating disorder, or if you take insulin or other glucose-lowering drugs without a clinician. Read Who should be careful with fasting.
I forgot to start on time. Can I fix it?
Yes. While the clock is running, use Edit Start Time next to the started time. Set when you actually stopped eating. The elapsed hours jump to match. You cannot pick a time in the future.
Is this an app I have to download?
No. This is a web timer. No app store. You can add it to the home screen later if you want.
Common fasting schedules · Choosing a starting window · Eating in the window · Who should be careful
All protocols · 16:8 fasting timer
Fasting Library · Fasting Fundamentals · How to make fasting easier · Longer fasts · Very long fasts · Using the Clock · Everyday Fasting · Questions from the community · History of Fasting · Humans, Food & Feast–Famine · What Research Suggests