Muslim festivals depend on the Islamic (lunar) calendar so the exact dates vary from year to year depending on the phases of the moon.
Officially name: The State of Brunei Darussalam or The Nation of Brunei, The Abode of Peace
Capital: Bandar Seri Begawan
Largest city: Bandar Seri Begawan
Official language: Malay (Bahasa Melayu)
Government: Islamic Absolute Monarchy