| 1/1/1958, Wed | New Year's Day |
- Note
- A statutory public holiday (Awal Tahun Masihi).
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| 2/17/1958, Mon | Isra' and Mi'raj |
- Note
- A statutory public holiday commemorating the Prophet Muhammad's night journey and ascension.
|
| 2/18/1958, Tue | Chinese New Year |
- Note
- A statutory public holiday (Tahun Baru Cina).
|
| 2/24/1958, Mon | National Day of Brunei Darussalam: Actual Observance Day |
- Note
- A statutory public holiday (Hari Kebangsaan).
|
| 3/22/1958, Sat | First Day of Ramadan |
- Note
- A statutory public holiday (Awal Ramadan).
|
| 4/7/1958, Mon | Nuzul Al-Quran |
- Note
- A statutory public holiday commemorating the revelation of the Qur'an.
|
| 4/21/1958, Mon | Hari Raya Aidil Fitri (Day 1) |
- Note
- A statutory public holiday.
|
| 4/22/1958, Tue | Hari Raya Aidil Fitri (Day 2) |
- Note
- A statutory public holiday.
|
| 4/23/1958, Wed | Hari Raya Aidil Fitri (Day 3) |
- Note
- A statutory public holiday.
|
| 5/31/1958, Sat | Royal Brunei Armed Forces Day |
- Note
- A statutory public holiday.
|
| 6/28/1958, Sat | Hari Raya Aidil Adha |
- Note
- A statutory public holiday.
|
| 7/15/1958, Tue | H.M. The Sultan's Birthday |
- Note
- A statutory public holiday. H.M. Sultan Haji Hassanal Bolkiah's Birthday (born 15 July 1946).
|
| 7/21/1958, Mon | Islamic New Year: Actual Observance Day |
- Note
- A statutory public holiday.
|
| 9/29/1958, Mon | Prophet Muhammad's Birthday: Actual Observance Day |
- Note
- A statutory public holiday (Maulud Nabi Muhammad SAW).
|
| 12/25/1958, Thu | Christmas Day |
- Note
- A statutory public holiday.
|