Since then
Age
days later
Ramadan and Eid are announced by moon sighting and can differ from the calendar by a day.
Hijri ⇄ Gregorian · the official Umm al-Qura calendar
Umm al-Qura is Saudi Arabia's official calendar, published by KACST, the national science agency.
Since then
Age
days later
Ramadan and Eid are announced by moon sighting and can differ from the calendar by a day.
Umm al-Qura, the official calendar of Saudi Arabia, published by KACST. The dates come from the calendar data built into your browser, and every month from 1300 to 1500 AH is tested against the official KACST table: the first day, the last day and the length all match.
In Saudi Arabia, the start of Ramadan and the Eids is announced after the new crescent is sighted, so it can differ from the calculated calendar by a day. For those dates, follow the official announcement.
From 1 Muharram 1300 AH to the end of 1500 AH, which is 12 November 1882 to 16 November 2077: the years the official table covers. Outside them, it says so instead of guessing.
In whole months up to the last monthly anniversary, then the days left: 31 January to 1 March is 1 month and 1 day. It's shown in Gregorian and in Hijri years, because a Hijri year is about 11 days shorter.
Some use an arithmetic formula, and some use other tables. A popular open-source converter we compared differs from the official table in 826 month lengths, almost all outside 1420 to 1450 AH.
No. Dates are converted inside this browser tab, with no server, and nothing you pick leaves your device.