Islamic Calendar 2026 Singapore: Hijri Date Today and Converter

The Hijri calendar is lunar: each month begins when the new crescent can be seen after sunset, so a month has 29 or 30 days and a year about 354 days, around 11 days shorter than the Gregorian year. In Singapore, the Mufti and MUIS decide when each month starts, using imkan ar-rukyah (whether the crescent can be seen) under the MABIMS criteria shared with Brunei, Indonesia and Malaysia: at sunset the moon must be at least 3 degrees above the horizon and at least 6.4 degrees from the sun.

This converter applies those criteria at sunset in Singapore for every month from 1343H to 1500H (1924 to 2077), using the open-source astronomy-engine library. Checked against every month start that MUIS published for 1445H to 1447H (the Muis Calendars 2024 and 2025 and the Mufti's announcements for Ramadan, Syawal and Zulhijjah 1447H), it matches all 28. Dates on months MUIS has announced are marked as such; later dates are calculated, and Hari Raya Puasa and Hari Raya Haji 2027 also match the public holidays MOM has gazetted.

MUIS's announcement always decides the actual date in Singapore, so a calculated date can still move by a day. The Umm al-Qura calendar used in Saudi Arabia follows different rules and is often a day ahead: it started Ramadan 1447H on 18 February 2026, while Singapore began fasting on 19 February. Dates before 2022, when MABIMS adopted the current criteria, are calculated the same way and may differ by a day from what was announced at the time.