Ramadan Countdown Calculator

See the estimated number of days until the next Ramadan begins.

Estimated start of Ramadan

Approximate — the actual start is confirmed by moon sighting and may shift by a day.

What this calculator does

This calculator estimates the Gregorian date the next Ramadan begins, using a standard arithmetic conversion between the Gregorian and Hijri (Islamic lunar) calendars, and shows how many days remain until then.

Worked example

Counting from September 2, 2026, the next Ramadan is estimated to begin aroundFebruary 8, 2027.

Common mistakes

  • Treating the estimate as an official date. Many countries and mosques announce the confirmed start of Ramadan only a day or two in advance, based on moon sighting — always check local announcements closer to the date.
  • Assuming the date is fixed year to year. Because the Islamic calendar is lunar, Ramadan shifts about 10-11 days earlier in the Gregorian calendar every year.
  • Confusing the start of Ramadan with Eid al-Fitr. Eid al-Fitr marks the end of Ramadan, roughly 29-30 days after it begins, not the start.

Frequently asked questions

Why is this date only an estimate?+

The Islamic calendar is lunar, and the start of each month is traditionally confirmed by an actual moon sighting, which can vary by a day depending on location and local religious authority. This calculator uses a standard arithmetic (tabular) Hijri calendar to estimate the date — official announcements may fall a day earlier or later.

Why does Ramadan start about 11 days earlier each year?+

The Islamic calendar has 354 or 355 days per year, about 10-11 days shorter than the 365-day Gregorian solar year, since it follows 12 lunar months instead of the solar cycle. This causes Ramadan to drift earlier through the Gregorian calendar each year, cycling through all seasons over roughly 33 years.

How long does Ramadan last?+

Ramadan is the 9th month of the Islamic calendar and lasts 29 or 30 days, depending on the lunar cycle, ending with the sighting of the new moon that begins Shawwal and the Eid al-Fitr celebration.

Does this work for finding other Islamic months too?+

This calculator is focused on Ramadan specifically. The same underlying Hijri calendar conversion could apply to any Islamic month, but the countdown here is set to the start of Ramadan (month 9).

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