Hijri month lengths for a year
A quick table of which months have 29 days and which have 30 in a Hijri year, plus the length of the whole year.
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How to use it
- Enter hijri year.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Month length = 30 if day 30 of that month exists in the Umm al-Qura table, otherwise 29. Year length = sum of the 12 month lengths.
Example
Inputs: Hijri year = 1,447 AH. Result: Days in the year: 355 days; Months of 30 days: 7; Year in the tabular calendar: Leap (355 days).
Limits and caveats
- Lengths are the official Umm al-Qura ones; a month can differ by a day if sighting is announced otherwise.
- Range is 1300 to 1600 AH.
Questions about this tool
Is Ramadan 29 or 30 days?
It varies by year; in Umm al-Qura Ramadan 1446 AH had 29 days and Ramadan 1447 AH had 30.
Why is a year 354 or 355 days?
A lunar month is about 29.53 days, so full and short months are spread to keep the year close to 12 lunar cycles.
Can three 30-day months come in a row?
Yes in Umm al-Qura, because it follows the real moon rather than the fixed alternation of the tabular calendar.