2028-01-01 Awal Tahun Masihi New Year's Day National 2028-01-26 Tahun Baru Cina Lunar New Year National 2028-01-28 Hari Pertama Berpuasa (anggaran) First Day of Ramadan (estimated) National 2028-01-29 Hari Pertama Berpuasa (diperhatikan, anggaran) First Day of Ramadan (observed, estimated) National 2028-02-13 Hari Nuzul Al-Quran (anggaran) Anniversary of the revelation of the Quran (estimated) National 2028-02-14 Hari Nuzul Al-Quran (diperhatikan, anggaran) Anniversary of the revelation of the Quran (observed, estimated) National 2028-02-23 Hari Kebangsaan National Day National 2028-02-27 Hari Raya Aidil Fitri (anggaran) Eid al-Fitr (estimated) National 2028-02-28 Hari Raya Aidil Fitri (anggaran) Eid al-Fitr (estimated) National 2028-02-29 Hari Raya Aidil Fitri (anggaran) Eid al-Fitr (estimated) National 2028-03-01 Hari Raya Aidil Fitri (diperhatikan, anggaran) Eid al-Fitr (observed, estimated) National 2028-05-05 Hari Raya Aidil Adha (anggaran) Eid al-Adha (estimated) National 2028-05-06 Hari Raya Aidil Adha (diperhatikan, anggaran) Eid al-Adha (observed, estimated) National 2028-05-26 Awal Tahun Hijrah (anggaran) Islamic New Year (estimated) National 2028-05-27 Awal Tahun Hijrah (diperhatikan, anggaran) Islamic New Year (observed, estimated) National 2028-05-31 Hari Angkatan Bersenjata Diraja Brunei Armed Forces Day National 2028-07-15 Hari Keputeraan KDYMM Sultan Brunei Sultan Hassanal Bolkiah's Birthday National 2028-08-04 Maulidur Rasul (anggaran) Prophet's Birthday (estimated) National 2028-08-05 Maulidur Rasul (diperhatikan, anggaran) Prophet's Birthday (observed, estimated) National 2028-12-14 Israk dan Mikraj (anggaran) Isra' and Mi'raj (estimated) National 2028-12-25 Hari Natal Christmas Day National 
