| 1/1/2020, Wed | New Year's Day |
- Note
- A statutory public holiday (Awal Tahun Masihi).
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| 1/25/2020, Sat | Chinese New Year |
- Note
- A statutory public holiday (Tahun Baru Cina).
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| 2/24/2020, Mon | National Day of Brunei Darussalam: Actual Observance Day |
- Note
- A statutory public holiday (Hari Kebangsaan).
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| 3/23/2020, 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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| 4/27/2020, Mon | First Day of Ramadan: Actual Observance Day |
- Note
- A statutory public holiday (Awal Ramadan).
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| 5/11/2020, Mon | Nuzul Al-Quran: Actual Observance Day |
- Note
- A statutory public holiday commemorating the revelation of the Qur'an.
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| 5/25/2020, Mon | Hari Raya Aidil Fitri (Day 1): Actual Observance Day |
- Note
- A statutory public holiday.
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| 5/25/2020, Mon | Hari Raya Aidil Fitri (Day 2) |
- Note
- A statutory public holiday.
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| 5/26/2020, Tue | Hari Raya Aidil Fitri (Day 3) |
- Note
- A statutory public holiday.
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| 6/1/2020, Mon | Royal Brunei Armed Forces Day: Actual Observance Day |
- Note
- A statutory public holiday.
|
| 7/15/2020, Wed | 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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| 8/3/2020, Mon | Hari Raya Aidil Adha: Actual Observance Day |
- Note
- A statutory public holiday.
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| 8/20/2020, Thu | Islamic New Year |
- Note
- A statutory public holiday.
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| 10/29/2020, Thu | Prophet Muhammad's Birthday |
- Note
- A statutory public holiday (Maulud Nabi Muhammad SAW).
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| 12/28/2020, Mon | Christmas Day: Actual Observance Day |
- Note
- A statutory public holiday.
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