| 1/1/1998, Thu | New Year's Day |
- Note
- A statutory public holiday (Awal Tahun Masihi).
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| 1/19/1998, Mon | Nuzul Al-Quran: Actual Observance Day |
- Note
- A statutory public holiday commemorating the revelation of the Qur'an.
|
| 1/28/1998, Wed | Chinese New Year |
- Note
- A statutory public holiday (Tahun Baru Cina).
|
| 1/31/1998, Sat | Hari Raya Aidil Fitri (Day 2) |
- Note
- A statutory public holiday.
|
| 2/2/1998, Mon | Hari Raya Aidil Fitri (Day 1): Actual Observance Day |
- Note
- A statutory public holiday.
|
| 2/2/1998, Mon | Hari Raya Aidil Fitri (Day 3): Actual Observance Day |
- Note
- A statutory public holiday.
|
| 2/23/1998, Mon | National Day of Brunei Darussalam |
- Note
- A statutory public holiday (Hari Kebangsaan).
|
| 4/8/1998, Wed | Hari Raya Aidil Adha |
- Note
- A statutory public holiday.
|
| 4/28/1998, Tue | Islamic New Year |
- Note
- A statutory public holiday.
|
| 6/1/1998, Mon | Royal Brunei Armed Forces Day: Actual Observance Day |
- Note
- A statutory public holiday.
|
| 7/7/1998, Tue | Prophet Muhammad's Birthday |
- Note
- A statutory public holiday (Maulud Nabi Muhammad SAW).
|
| 7/15/1998, Wed | H.M. The Sultan's Birthday |
- Note
- A statutory public holiday. H.M. Sultan Haji Hassanal Bolkiah's Birthday (born 15 July 1946).
|
| 11/17/1998, Tue | Isra' and Mi'raj |
- Note
- A statutory public holiday commemorating the Prophet Muhammad's night journey and ascension.
|
| 12/21/1998, Mon | First Day of Ramadan: Actual Observance Day |
- Note
- A statutory public holiday (Awal Ramadan).
|
| 12/28/1998, Mon | Christmas Day: Actual Observance Day |
- Note
- A statutory public holiday.
|