
White Days: Sunnah Fast Alerts
Sunnah Fasting & Hijri Alerts
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About
Never miss the White Days fast again. Whitedays tracks the 13th, 14th and 15th of every Hijri month (Ayyam al-Bid) and reminds you to fast on Mondays and Thursdays.
• Precise countdown to the next White Days
• Automatic alert the day before they start
• Weekly Monday & Thursday fasting reminder, sent on Sunday and Wednesday evening
• Hijri and Gregorian calendar with the White Days highlighted
• Short content on the virtue of these fasts, with hadith sources (Sahih al-Bukhari 1981, Jami' at-Tirmidhi 761 and 747)
• Simple notification settings you can switch off anytime
• Calm dark design
Free and lightweight, with ads. No account needed.
For reminders only, not medical advice: if you are ill, pregnant or on treatment, ask your doctor before fasting.
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What's New in White Days
1.0.5
November 8, 2026
Added 15 languages and automatic phone language detection.



