How are prayer times calculated for Chittagong?
Sitting at roughly 22.36°N in Chattogram Division, Chittagong has its own sunrise and sunset each day, so its prayer times are worked out from its exact position rather than a regional average.
Today the sun rises at 05:50 and Maghrib falls at 17:25, giving 11h 35m between the two. As the year turns this daylight window lengthens and shortens, which is why Fajr (currently 04:35) and Isha (currently 18:40) shift gradually from week to week.
When praying in Chittagong, the Qibla is faced towards the Kaaba in Makkah, which lies on a bearing of 279° from here, roughly to the west — a great-circle distance of about 5,334 km.
Prayer times in Chittagong are very close to those in neighbouring towns, though they differ by a minute or two with distance. Nearby you can also check Dhaka (214 km) and Sylhet (282 km).