Hijri (Islamic) Day

Enter the date values and the tool computes the result for the hijri calendar system.

1. 1

   Step 1

   Enter your date in the Hijri (Islamic) calendar: day, month, and year.

2. 2

   Step 2

   We walk the real Hijri (Islamic) calendar — a lunar year of about 354 days (11 days shorter than the Gregorian, so dates shift ~11 days earlier each year) — instead of a flat 30-day-month average.

3. 3

   Step 3

   The output breaks down years, months, and days on real Hijri (Islamic) lengths.

• 1

  This Hijri (Islamic) Day of the Year follows Hijri (Islamic) calendar rules — its own epoch, month lengths, and leap years — so the result can differ from a Gregorian-based calculation of the same date; treat the calendar system as part of the input.

• 2

  Watch century boundaries and very old dates in the Hijri (Islamic) system: historical calendars dropped or added days when they were adopted, which is invisible in daily use but material for long-range historical calculations here.

• 3

  For deadlines tied to authorities or contracts, confirm which calendar the deadline officially uses before converting it here — a Hijri (Islamic) date read in the wrong system can be off by days or even a full year.

• Intercalation is system-private: the Hijri (Islamic) year runs 354–355 days because leap months follow rules no other calendar shares, so a Gregorian every-fourth-year reflex misreads hijri (islamic) dates. Let the tool apply the hijri (islamic) rule to a day-of-year number.

• Midnight and time-zone rollover flip whole days: a date near 00:00 belongs to the previous or next day depending on zone, which shifts day counts and weekdays computed under the Hijri (Islamic) calendar. Fix one time zone for all inputs.