| 1/1/2004, Thu | New Year's Day |
- Note
- A statutory public holiday (Awal Tahun Masihi).
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| 1/22/2004, Thu | Chinese New Year |
- Note
- A statutory public holiday (Tahun Baru Cina).
|
| 2/2/2004, Mon | Hari Raya Aidil Adha |
- Note
- A statutory public holiday.
|
| 2/23/2004, Mon | National Day of Brunei Darussalam |
- Note
- A statutory public holiday (Hari Kebangsaan).
|
| 2/23/2004, Mon | Islamic New Year: Actual Observance Day |
- Note
- A statutory public holiday.
|
| 5/3/2004, Mon | Prophet Muhammad's Birthday: Actual Observance Day |
- Note
- A statutory public holiday (Maulud Nabi Muhammad SAW).
|
| 5/31/2004, Mon | Royal Brunei Armed Forces Day |
- Note
- A statutory public holiday.
|
| 7/15/2004, Thu | H.M. The Sultan's Birthday |
- Note
- A statutory public holiday. H.M. Sultan Haji Hassanal Bolkiah's Birthday (born 15 July 1946).
|
| 9/13/2004, Mon | Isra' and Mi'raj: Actual Observance Day |
- Note
- A statutory public holiday commemorating the Prophet Muhammad's night journey and ascension.
|
| 10/18/2004, Mon | First Day of Ramadan: Actual Observance Day |
- Note
- A statutory public holiday (Awal Ramadan).
|
| 11/1/2004, Mon | Nuzul Al-Quran: Actual Observance Day |
- Note
- A statutory public holiday commemorating the revelation of the Qur'an.
|
| 11/15/2004, Mon | Hari Raya Aidil Fitri (Day 1): Actual Observance Day |
- Note
- A statutory public holiday.
|
| 11/15/2004, Mon | Hari Raya Aidil Fitri (Day 2) |
- Note
- A statutory public holiday.
|
| 11/16/2004, Tue | Hari Raya Aidil Fitri (Day 3) |
- Note
- A statutory public holiday.
|
| 12/25/2004, Sat | Christmas Day |
- Note
- A statutory public holiday.
|