The MMA Sighting Assembly
Imams gather at the Central Mosque in Ölgii on the 29th of each lunar month, monitoring the pristine high-altitude horizons of the Altai mountains and coordinating with Ulaanbaatar.
Altai Mountain Horizon Clarity
The thin, unpolluted atmosphere of western Mongolia provides superior astronomical visibility, though extreme winter cold necessitates close consultation with regional celestial models.
Day Transition Dynamics
The civil calendar updates at 12:00 AM midnight Ulaanbaatar Time (Asia/Ulaanbaatar, UTC+8), while religious observance begins at sunset with the Maghrib prayer.