| 1/2/1905, Mon | New Year's Day: Actual Observance Day |
- Note
- A statutory public holiday (Awal Tahun Masihi).
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| 2/4/1905, Sat | Chinese New Year |
- Note
- A statutory public holiday (Tahun Baru Cina).
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| 2/15/1905, Wed | Hari Raya Aidil Adha |
- Note
- A statutory public holiday.
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| 2/23/1905, Thu | National Day of Brunei Darussalam |
- Note
- A statutory public holiday (Hari Kebangsaan).
|
| 3/8/1905, Wed | Islamic New Year |
- Note
- A statutory public holiday.
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| 5/17/1905, Wed | Prophet Muhammad's Birthday |
- Note
- A statutory public holiday (Maulud Nabi Muhammad SAW).
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| 5/31/1905, Wed | Royal Brunei Armed Forces Day |
- Note
- A statutory public holiday.
|
| 7/15/1905, Sat | H.M. The Sultan's Birthday |
- Note
- A statutory public holiday. H.M. Sultan Haji Hassanal Bolkiah's Birthday (born 15 July 1946).
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| 9/27/1905, Wed | Isra' and Mi'raj |
- Note
- A statutory public holiday commemorating the Prophet Muhammad's night journey and ascension.
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| 10/30/1905, Mon | First Day of Ramadan |
- Note
- A statutory public holiday (Awal Ramadan).
|
| 11/15/1905, Wed | Nuzul Al-Quran |
- Note
- A statutory public holiday commemorating the revelation of the Qur'an.
|
| 11/29/1905, Wed | Hari Raya Aidil Fitri (Day 1) |
- Note
- A statutory public holiday.
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| 11/30/1905, Thu | Hari Raya Aidil Fitri (Day 2) |
- Note
- A statutory public holiday.
|
| 12/4/1905, Mon | Hari Raya Aidil Fitri (Day 3): Actual Observance Day |
- Note
- A statutory public holiday.
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| 12/25/1905, Mon | Christmas Day |
- Note
- A statutory public holiday.
|