Muslim Presence in Sa Dec: Sa Dec, a city in the Mekong Delta region of Vietnam, is home to a small but established Muslim community. While historical records are limited, the presence of prayer places in nearby areas such as Cần Thơ indicates a long-term settlement of Muslims in the region. The community has maintained its religious practices over generations, contributing to the cultural diversity of the area.

Community and Prayer Places: The Muslim community in Sa Dec is served by several prayer places in the vicinity, including Masjid Rahmah in Ninh Kiều, Cần Thơ, which serves as a central location for worshippers. Other mapped prayer places such as Cổng rào antt ấp Tân Long in Phong Điền and Út Đời in Tan Hoa further illustrate the implantation of the community across the region. These facilities provide essential spaces for daily prayers and community gatherings.

Prayer Time Orientation: Muslims in Sa Dec observe the five daily prayers—Fajr, Dhuhr, Asr, Maghrib, and Isha—according to the local timezone Asia/Ho_Chi_Minh. Prayer times vary throughout the year due to changes in sunrise and sunset, influenced by the city's latitude and season. The Qibla direction and distance to Mecca are key for orientation during prayer. The calculation method used ensures accurate timings for the community's daily rhythm.