Sunnah fasting days in May 2021

May 2021 spans Ramadan 1442 – Shawwal 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.

Part of May 2021 falls in Ramadan, when the whole month's fast is obligatory — so no extra sunnah fasting days are listed for those dates, and our reminders pause too.

This month also includes an Eid day — days to celebrate, on which fasting is not allowed. They are left out above by design.

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