| 1/1/1986, Wed | New Year's Day |
- Note
- A statutory public holiday (Awal Tahun Masihi).
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| 2/10/1986, Mon | Chinese New Year: Actual Observance Day |
- Note
- A statutory public holiday (Tahun Baru Cina).
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| 2/24/1986, Mon | National Day of Brunei Darussalam: Actual Observance Day |
- Note
- A statutory public holiday (Hari Kebangsaan).
|
| 4/7/1986, Mon | Isra' and Mi'raj |
- Note
- A statutory public holiday commemorating the Prophet Muhammad's night journey and ascension.
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| 5/10/1986, Sat | First Day of Ramadan |
- Note
- A statutory public holiday (Awal Ramadan).
|
| 5/26/1986, Mon | Nuzul Al-Quran |
- Note
- A statutory public holiday commemorating the revelation of the Qur'an.
|
| 5/31/1986, Sat | Royal Brunei Armed Forces Day |
- Note
- A statutory public holiday.
|
| 6/9/1986, Mon | Hari Raya Aidil Fitri (Day 1) |
- Note
- A statutory public holiday.
|
| 6/10/1986, Tue | Hari Raya Aidil Fitri (Day 2) |
- Note
- A statutory public holiday.
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| 6/11/1986, Wed | Hari Raya Aidil Fitri (Day 3) |
- Note
- A statutory public holiday.
|
| 7/15/1986, Tue | 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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| 8/16/1986, Sat | Hari Raya Aidil Adha |
- Note
- A statutory public holiday.
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| 9/6/1986, Sat | Islamic New Year |
- Note
- A statutory public holiday.
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| 11/15/1986, Sat | Prophet Muhammad's Birthday |
- Note
- A statutory public holiday (Maulud Nabi Muhammad SAW).
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| 12/25/1986, Thu | Christmas Day |
- Note
- A statutory public holiday.
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