Universal Hijri Calendar

What is the Universal Hijri Calendar The Universal Hijri Calendar (UHC) , formulated by Sajid Mahmood Ansari , is a global, astronomy-based Hijri calendar system that unifies the Islamic lunar date for the entire Ummah while remaining faithful to the Shariah principle of moonsighting (ru’yat al-hilāl) . The Universal Hijri Calendar (UHC) is built on the fundamental Islamic and astronomical principle that a day is defined as a complete 24-hour cycle , not as a local or fragmented occurrence. Its core objective is to ensure that all Muslim countries enter a new Hijri month within the same 24-hour day , even if the exact moment of moon visibility differs slightly by region. By using a unified astronomical framework grounded in the Moon’s actual motion and the Earth’s rotation, the UHC eliminates the long-standing problem of month fragmentation , where some countries begin a Hijri month one or even two days apart. Instead of forcing every region to start on the exact same clock hour, th...