1431 AH Hijri Calendar
The complete Hijri calendar for 1431 AH according to the official Umm al-Qura calendar: the year begins on December 18, 2009 and ends on December 6, 2010, lasting 354 days across twelve lunar months. The table below lists the start and length of each month, and the occasions table highlights the year’s key Islamic dates such as Ramadan and the two Eids.
Months of 1431 AH
| Month | First day | Weekday | Days |
|---|---|---|---|
| Muharram | December 18, 2009 | Friday | 29 |
| Safar | January 16, 2010 | Saturday | 30 |
| Rabi' al-Awwal | February 15, 2010 | Monday | 30 |
| Rabi' al-Thani | March 17, 2010 | Wednesday | 29 |
| Jumada al-Ula | April 15, 2010 | Thursday | 30 |
| Jumada al-Akhira | May 15, 2010 | Saturday | 29 |
| Rajab | June 13, 2010 | Sunday | 30 |
| Sha'ban | July 13, 2010 | Tuesday | 29 |
| Ramadan | August 11, 2010 | Wednesday | 30 |
| Shawwal | September 10, 2010 | Friday | 29 |
| Dhul-Qi'dah | October 9, 2010 | Saturday | 29 |
| Dhul-Hijjah | November 7, 2010 | Sunday | 30 |
Occasions of 1431 AH
| Occasion | Hijri date | Gregorian date |
|---|---|---|
| Islamic New Year | 1 Muharram | December 18, 2009 (Friday) |
| Day of Ashura | 10 Muharram | December 27, 2009 (Sunday) |
| Mawlid an-Nabi | 12 Rabi' al-Awwal | February 26, 2010 (Friday) |
| Isra' and Mi'raj | 27 Rajab | July 9, 2010 (Friday) |
| Mid-Sha'ban | 15 Sha'ban | July 27, 2010 (Tuesday) |
| First day of Ramadan | 1 Ramadan | August 11, 2010 (Wednesday) |
| Laylat al-Qadr (most likely) | 27 Ramadan | September 6, 2010 (Monday) |
| Eid al-Fitr | 1 Shawwal | September 10, 2010 (Friday) |
| Day of Arafah | 9 Dhul-Hijjah | November 15, 2010 (Monday) |
| Eid al-Adha | 10 Dhul-Hijjah | November 16, 2010 (Tuesday) |
The Hijri date may differ by one day depending on the moon sighting and the official announcement in your country.
Frequently asked questions
When does 1431 AH start and end?
1431 AH begins on December 18, 2009 and ends on December 6, 2010, according to the official Umm al-Qura calendar.
How many days are there in 1431 AH?
1431 AH lasts 354 days; a Hijri year is 354 or 355 days depending on how the lunar months of 29 and 30 days alternate.
When are Ramadan and the Eids in 1431 AH?
Ramadan begins August 11, 2010 (Wednesday), Eid al-Fitr September 10, 2010 (Friday), the Day of Arafah November 15, 2010 (Monday), and Eid al-Adha November 16, 2010 (Tuesday). See the occasions table above for more.
Why does the Hijri year start on a different Gregorian date each time?
A Hijri year is about 11 days shorter than a Gregorian year, so each new Hijri year starts roughly eleven days earlier on the Gregorian calendar than the one before.