New Islamic Year 2019 Holiday in Oman Calendar When: September 1, 2019 all-day 2019-09-01T00:00:00+04:00 2019-09-02T00:00:00+04:00 Holidays 1st September 2019 , Sunday will be the 1st day of New Islamic Hijri Year 1441AH. According to the Ministry of Endowments and Religious Affairs Oman. and Sunday will be the official Holiday in Sultante of Oman
