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Fasting Duration Calculator
Hours of fasting from Fajr to Maghrib — Umm al-Qura
Calculate Fasting Duration
Fasting duration
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Fajr (Imsak)
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Maghrib (Iftar)
About Fasting Duration
Fasting duration is the period between the Fajr adhan (abstaining from food and drink) and the Maghrib adhan (Iftar). It changes throughout the year with the length of daylight — longer in summer, shorter in winter — and differs slightly between Saudi cities by location. This tool uses the official Umm al-Qura timings to give an accurate duration for your city and date, especially useful in Ramadan to plan Suhoor and Iftar.
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Frequently Asked Questions
Fasting duration varies by city and season; in summer it can reach about 14–15 hours, and in winter it shortens to about 11–12 hours. This tool calculates the exact duration from Fajr to Maghrib for your city and date.
Fasting begins at true dawn (Fajr/Imsak) and ends at sunset (the Maghrib adhan / Iftar). Fasting duration = Maghrib time − Fajr time.
The tool uses the Umm al-Qura method (the official method in Saudi Arabia) with accurate per-city timings, using an 18.5-degree angle for Fajr.
Yes, Fajr and Maghrib times differ slightly between cities by geographic location, so you choose your city to get an accurate fasting duration.
Choose your city and the date, and the tool fetches the Fajr and Maghrib times and instantly calculates the fasting duration in hours and minutes. The tool is free and runs in your browser with no registration.