When do the days of the Hijri month begin: Is it from sunset on the preceding day, or from the Adhan of Maghrib, or 20 minutes after Maghrib prayer?
The first day of Rajab 1436 AH corresponded to Monday, April 20, 2015 CE. The beginning of the Hijri month is marked by the sunset of the last day of the preceding month, because night precedes day in the Arabic lunar calendar.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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