The Yemeni Sighting Process
On the 29th evening of lunar months, committees in Sana'a, Aden, Taiz, and Hadhramaut deploy observers to elevated locations with clear horizons. Testimonies from credible witnesses are presented to judicial courts.
Geography and Mountain Astronomy
Yemen's towering mountain peaks provide some of the clearest natural observation posts in the Arabian Peninsula. The high elevation significantly reduces atmospheric distortion when observing the nascent crescent moon.
Day Rollover Timing
The civil calendar updates at 12:00 AM midnight Arabia Standard Time (AST / Asia/Aden, UTC+3), while the religious Islamic date commences at sunset with the Maghrib Adhan.