The CIOG National Moonsighting Assembly
On the 29th of each lunar month, the Moonsighting Committee of the Central Islamic Organisation of Guyana (CIOG) convenes at the CIOG Complex and Queenstown Mosque in Georgetown. Sighting posts along the Atlantic seawall and Corentyne coast report directly to the Director of Education and President.
Atlantic Seawall Horizon Advantage
Because coastal Guyana lies below sea level, its sea defense walls (Seawall) provide uninterrupted 180-degree ocean views over the Atlantic, offering clear sightlines for spotting the newborn crescent.
Day Transition Dynamics & Georgetown Midnight Synchronization
The civil calendar updates at 12:00 AM midnight Guyana Time (GYT, America/Guyana, UTC-4), while religious observance begins at sunset with the Maghrib prayer.