Fasting during Ramadan means no food or water from dawn to sunset, every day for 29 or 30 days. The rules are straightforward once you know them. This guide covers what's allowed, what breaks the fast, who's exempt, and how long the fasting hours actually are.
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Fasting (sawm) is one of the five pillars of Islam. During Ramadan, every able adult Muslim fasts from the Fajr prayer (dawn) until the Maghrib prayer (sunset). The fast is broken each evening with iftar and begins again the next morning with suhoor before dawn.
Eating or drinking intentionally. Smoking. Deliberate vomiting. Sexual intimacy during fasting hours. If you eat or drink by accident (genuinely forgetting), the fast remains valid.
Swallowing saliva. Brushing teeth (without swallowing). Eye drops, ear drops. Blood tests. Involuntary vomiting. Tasting food without swallowing (though scholars differ on this).
Suhoor is the pre-dawn meal, eaten before the Fajr prayer. It's not optional in practice. Skipping it makes the fasting day significantly harder. The Prophet Muhammad specifically encouraged suhoor, calling it a "blessed meal."
Iftar is the meal at sunset that breaks the fast. The tradition is to break fast with dates and water first, followed by the Maghrib prayer, and then a fuller meal. Eating slowly after a long fast helps avoid overeating and digestive discomfort.
The 2-4-2 rule is a popular guideline for staying hydrated during Ramadan: drink 2 glasses of water at iftar, 4 glasses between iftar and suhoor, and 2 glasses at suhoor. That totals 8 glasses spread across your non-fasting hours.
Hydration is one of the most overlooked parts of Ramadan fasting. Caffeine and sugary drinks during non-fasting hours work against you. Water, coconut water, and hydrating foods (watermelon, cucumber, yogurt) are better choices. If you start tapering caffeine before Ramadan, the transition is easier.
Fasting hours depend entirely on where you live and when Ramadan falls in the Gregorian calendar. Because Ramadan shifts earlier by about 11 days each year, the fasting hours change annually. In 2026, Ramadan fell in February and March, which meant relatively moderate hours for the Northern Hemisphere.
| Location | 2026 fasting hours (approx.) |
|---|---|
| New York, USA | 11.5 to 12.5 hours |
| London, UK | 11 to 13 hours |
| Dubai, UAE | 12 to 12.5 hours |
| Jakarta, Indonesia | 13 to 13.5 hours |
| Stockholm, Sweden | 10 to 13.5 hours |
| Reykjavik, Iceland | 9 to 14.5 hours |
Muslims in extreme northern latitudes (where daylight can exceed 20 hours in summer) often follow the times of the nearest city with distinguishable dawn and sunset, or follow Mecca's times. Check the Ramadan 2026 dates for more context on this year's timing.
Islam provides clear exemptions for those who cannot fast safely. Exemptions are not optional loopholes. They are built into the obligation itself.
Fasting is not required before puberty. Many families introduce children to partial fasting gradually as practice.
Women who are pregnant or breastfeeding may skip fasting if it would harm them or the child. Missed days are made up later or compensated with fidyah.
Anyone whose health would be harmed by fasting, or who is traveling, may postpone. The missed days should be made up after Ramadan when conditions allow.
Muslims fast from dawn (Fajr) to sunset (Maghrib) each day. No food, water, or drinks during fasting hours. The fast begins with a pre-dawn meal called suhoor and is broken at sunset with a meal called iftar, traditionally starting with dates and water.
The 2-4-2 rule is a hydration guideline: drink 2 glasses of water at iftar, 4 glasses between iftar and suhoor, and 2 glasses at suhoor. This helps prevent dehydration during fasting hours, especially in warmer months or at higher latitudes with longer days.
Eating, drinking, or smoking intentionally breaks the fast. Unintentional acts (like forgetting you are fasting and eating) do not invalidate the fast according to most scholars. Vomiting deliberately also breaks the fast; involuntary vomiting does not.
Children before puberty, the elderly who cannot fast safely, pregnant or nursing women if fasting would harm them or the child, travelers, and anyone with an illness that fasting would worsen. Most exemptions require making up missed days later or paying fidyah (feeding a person in need for each day missed).
Fasting hours depend on your location and the time of year. In 2026, with Ramadan in February and March, fasting ranged from about 11.5 hours near the equator to over 15 hours in northern Europe. The hours change each year as Ramadan shifts through the seasons.
No. During fasting hours (dawn to sunset), no food or liquids are consumed, including water. Hydration happens during suhoor (before dawn) and after iftar (at sunset). The 2-4-2 water guideline helps ensure you drink enough during non-fasting hours.
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