The ISPNG Sighting Assembly
At the conclusion of the 29th day of each lunar month, the executive committee of ISPNG gathers at the Hohola Mosque in Port Moresby to observe the western horizon over the Gulf of Papua and receive regional reports.
Highland and Coastal Observations
Because tropical afternoon rain and cloud cover can obscure Port Moresby's horizon, sighting coordinators in coastal Lae and elevated vantage points in the Highlands provide secondary sighting confirmations.
Day Transition Dynamics
The civil calendar updates at 12:00 AM midnight Papua New Guinea Time (PGT, Pacific/Port_Moresby, UTC+10), while religious observance begins at sunset with the Maghrib prayer.