His Majesty the Sultan’s Accession Day on January 12 – ( Oman Holiday 2023) Calendar When: January 12, 2023 all-day 2023-01-12T00:00:00+04:00 2023-01-13T00:00:00+04:00 Holidays Oman His Majesty His Majesty Sultan Haitham bin Tarik – the Sultan’s Accession Day
