| 1/1/1912, Mon | New Year's Day |
- Note
- A statutory public holiday (Awal Tahun Masihi).
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| 2/19/1912, Mon | Chinese New Year: Actual Observance Day |
- Note
- A statutory public holiday (Tahun Baru Cina).
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| 2/26/1912, Mon | National Day of Brunei Darussalam: Actual Observance Day |
- Note
- A statutory public holiday (Hari Kebangsaan).
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| 3/4/1912, Mon | Prophet Muhammad's Birthday: Actual Observance Day |
- Note
- A statutory public holiday (Maulud Nabi Muhammad SAW).
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| 6/3/1912, Mon | Royal Brunei Armed Forces Day: Actual Observance Day |
- Note
- A statutory public holiday.
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| 7/15/1912, Mon | Isra' and Mi'raj: Actual Observance Day |
- Note
- A statutory public holiday commemorating the Prophet Muhammad's night journey and ascension.
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| 7/15/1912, Mon | 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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| 8/14/1912, Wed | First Day of Ramadan |
- Note
- A statutory public holiday (Awal Ramadan).
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| 9/2/1912, Mon | Nuzul Al-Quran: Actual Observance Day |
- Note
- A statutory public holiday commemorating the revelation of the Qur'an.
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| 9/14/1912, Sat | Hari Raya Aidil Fitri (Day 2) |
- Note
- A statutory public holiday.
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| 9/16/1912, Mon | Hari Raya Aidil Fitri (Day 1): Actual Observance Day |
- Note
- A statutory public holiday.
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| 9/16/1912, Mon | Hari Raya Aidil Fitri (Day 3): Actual Observance Day |
- Note
- A statutory public holiday.
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| 11/20/1912, Wed | Hari Raya Aidil Adha |
- Note
- A statutory public holiday.
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| 12/11/1912, Wed | Islamic New Year |
- Note
- A statutory public holiday.
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| 12/25/1912, Wed | Christmas Day |
- Note
- A statutory public holiday.
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