| 1 Jan, 2023 (Sun) | New Year's Day | Public Holiday |
| 2 Jan, 2023 (Mon) | Day off for New Year's Day | Public Holiday |
| 22 Jan, 2023 (Sun) | Lunar New Year | Public Holiday |
| 23 Jan, 2023 (Mon) | Day off for Lunar New Year | Public Holiday |
| 18 Feb, 2023 (Sat) | Isra and Mi'raj | Public Holiday |
| 23 Feb, 2023 (Thu) | National Day | Public Holiday |
| 21 Mar, 2023 (Tue) | March Equinox | Season |
| 23 Mar, 2023 (Thu) | Ramadan begins | Public Holiday |
| 8 Apr, 2023 (Sat) | Nuzul Al-Qur'an (Tentative Date) | Public Holiday |
| 22 Apr, 2023 (Sat) | Eid al-Fitr | Public Holiday |
| 23 Apr, 2023 (Sun) | Eid al-Fitr Holiday | Public Holiday |
| 24 Apr, 2023 (Mon) | Eid al-Fitr Holiday | Public Holiday |
| 25 Apr, 2023 (Tue) | Eid al-Fitr Holiday | Public Holiday |
| 31 May, 2023 (Wed) | Royal Brunei Armed Forces Day | Public Holiday |
| 22 Jun, 2023 (Thu) | June Solstice | Season |
| 29 Jun, 2023 (Thu) | Eid al-Adha | Public Holiday |
| 15 Jul, 2023 (Sat) | Sultan's Birthday | Public Holiday |
| 18 Jul, 2023 (Tue) | Muharram (Muslim New Year) | Public Holiday |
| 23 Sep, 2023 (Sat) | September Equinox | Season |
| 28 Sep, 2023 (Thu) | Milad un Nabi (Mawlid) (Tentative Date) | Public Holiday |
| 22 Dec, 2023 (Fri) | December Solstice | Season |
| 25 Dec, 2023 (Mon) | Christmas Day | Public Holiday |
