Breakdown
How it works
The Hijri year has 12 lunar months of 29 or 30 days (354 or 355 days), so it moves about 11 days earlier each Gregorian year. The tabular calendar used here alternates 30/29-day months with 11 leap years per 30-year cycle. Saudi Arabia's Umm al-Qura calendar and local moon-sighting announcements may differ by a day.
Formula
Worked example
19 October 2026 ≈ 7 Jumada al-Ula 1448 AH. Someone born 15 June 1990 is 36 Gregorian but 37 Hijri years old.
Frequently asked questions
Why does the Hijri date differ from my app?
Apps use Umm al-Qura or local sighting; this uses the arithmetical calendar. Differences are at most one day, usually at month boundaries.
When is Ramadan 2027?
Expected to begin around 8 February 2027, and Eid al-Fitr around 10 March 2027, subject to moon sighting.
Does Hijri age matter legally?
Saudi Arabia uses Hijri dates for many legal purposes (retirement age, contract durations) and Hijri age in some eligibility rules.