| 1/1/1920, Thu | New Year's Day |
- Note
- A statutory public holiday (Awal Tahun Masihi).
|
| 2/23/1920, Mon | Chinese New Year: Actual Observance Day |
- Note
- A statutory public holiday (Tahun Baru Cina).
|
| 2/23/1920, Mon | National Day of Brunei Darussalam |
- Note
- A statutory public holiday (Hari Kebangsaan).
|
| 4/19/1920, Mon | Isra' and Mi'raj: Actual Observance Day |
- Note
- A statutory public holiday commemorating the Prophet Muhammad's night journey and ascension.
|
| 5/19/1920, Wed | First Day of Ramadan |
- Note
- A statutory public holiday (Awal Ramadan).
|
| 5/31/1920, Mon | Royal Brunei Armed Forces Day |
- Note
- A statutory public holiday.
|
| 6/7/1920, Mon | Nuzul Al-Quran: Actual Observance Day |
- Note
- A statutory public holiday commemorating the revelation of the Qur'an.
|
| 6/19/1920, Sat | Hari Raya Aidil Fitri (Day 2) |
- Note
- A statutory public holiday.
|
| 6/21/1920, Mon | Hari Raya Aidil Fitri (Day 1): Actual Observance Day |
- Note
- A statutory public holiday.
|
| 6/21/1920, Mon | Hari Raya Aidil Fitri (Day 3): Actual Observance Day |
- Note
- A statutory public holiday.
|
| 7/15/1920, Thu | H.M. The Sultan's Birthday |
- Note
- A statutory public holiday. H.M. Sultan Haji Hassanal Bolkiah's Birthday (born 15 July 1946).
|
| 8/25/1920, Wed | Hari Raya Aidil Adha |
- Note
- A statutory public holiday.
|
| 9/15/1920, Wed | Islamic New Year |
- Note
- A statutory public holiday.
|
| 11/24/1920, Wed | Prophet Muhammad's Birthday |
- Note
- A statutory public holiday (Maulud Nabi Muhammad SAW).
|
| 12/25/1920, Sat | Christmas Day |
- Note
- A statutory public holiday.
|