This tool tracks total elapsed time between meals to help you manage your fasting goals effectively.
Your fasting duration: 0 hours and 0 minutes
This summary indicates whether you have successfully reached the goal of your selected fasting protocol based on the provided start and end times.
Duration is measured from the moment you take your last bite of food until the first bite of your next meal.
Fasting Time = (End Date + Time) - (Start Date + Time)
Let's look at how a standard 16:8 intermittent fast is calculated.
Anything that triggers an insulin response breaks a metabolic fast. This includes adding sugar, milk, or cream to your beverages. Stick to water, black coffee, or plain herbal tea to maintain your fast.
Drink water consistently throughout the day. If you find plain water boring, try sparkling water or adding a pinch of sea salt to replenish electrolytes during longer fasts.
© 2026 Hreflabs LLC. All rights reserved.
Made with ❤️ for everyone who loves accurate calculations
