Every Hijri month · the bright nights

Ayyam al-Bidh (white days)

أيام البيض

The 13th, 14th, and 15th of each Hijri month are known as the white days (Ayyam al-Bidh) because the moon is full and the nights are bright. The Prophet ﷺ advised fasting three days of each month.

Next occurrence

October 24, 2026

this week

Dates follow the Umm al-Qura calendar and may vary by a day with local moon sighting.

The ruling

Three days of every month

The reward

As if fasting the whole year

Fasting three days of each month is equivalent to fasting the entire year.

Dates

Ayyam al-Bidh (white days): dates through 1450 AH

Hijri month	13	14	15
Jumada I 1448 AH	Sat, Oct 24, 2026	Sun, Oct 25, 2026	Mon, Oct 26, 2026
Jumada II 1448 AH	Mon, Nov 23, 2026	Tue, Nov 24, 2026	Wed, Nov 25, 2026
Rajab 1448 AH	Tue, Dec 22, 2026	Wed, Dec 23, 2026	Thu, Dec 24, 2026
Shaʻban 1448 AH	Thu, Jan 21, 2027	Fri, Jan 22, 2027	Sat, Jan 23, 2027
Shawwal 1448 AH	Sun, Mar 21, 2027	Mon, Mar 22, 2027	Tue, Mar 23, 2027
Dhuʻl-Qiʻdah 1448 AH	Tue, Apr 20, 2027	Wed, Apr 21, 2027	Thu, Apr 22, 2027
Dhuʻl-Hijjah 1448 AH	Wed, May 19, 2027 · Day of Tashriq	Thu, May 20, 2027	Fri, May 21, 2027
Muharram 1449 AH	Fri, Jun 18, 2027	Sat, Jun 19, 2027	Sun, Jun 20, 2027
Safar 1449 AH	Sat, Jul 17, 2027	Sun, Jul 18, 2027	Mon, Jul 19, 2027
Rabiʻ I 1449 AH	Sun, Aug 15, 2027	Mon, Aug 16, 2027	Tue, Aug 17, 2027
Rabiʻ II 1449 AH	Tue, Sep 14, 2027	Wed, Sep 15, 2027	Thu, Sep 16, 2027

Calculated Umm al-Qura dates. How these dates are calculated

Track this in Ayyam

A quiet reminder, the evening before.

Ayyam computes suhoor and iftar for your city and reminds you when a recommended day approaches.

Download for iPhone