Sunnah fasting days in September 2020

September 2020 spans Muharram 1442 – Safar 1442 AH on the standard Umm al-Qura reckoning. Below is every recommended fasting day in the month with its exact date. If your community's moon sighting runs a day ahead or behind, shift the Hijri dates by one day — the converter and calendar feed both have a ±1 sync setting for exactly this.

13 Muharram 1442 AH White Day (Ayyam al-Beed)
15 Muharram 1442 AH Thursday fast
19 Muharram 1442 AH Monday fast
22 Muharram 1442 AH Thursday fast
26 Muharram 1442 AH Monday fast
29 Muharram 1442 AH Thursday fast
4 Safar 1442 AH Monday fast
7 Safar 1442 AH Thursday fast
11 Safar 1442 AH Monday fast
13 Safar 1442 AH White Day (Ayyam al-Beed)

To understand any of these days — the White Days, Mondays & Thursdays, Ashura, Arafah — the blog walks through each one with sources quoted verbatim.

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