A regional Calendar of Events listing national holidays, festivals particular to the region and other events throughout the year is available from tourist offices in Sumatra. The most important time for Muslims, of course, is Ramadan (Buluan Puasa), the traditional Muslim month of daily fasting, which falls around January to February. Idul Adha is another important Muslim holiday, commemorating Abraham's willingness to sacrifice his son Isaac, and it is celebrated around April to May.
Independence Day is celebrated on 17 August with a national public holiday, parades and special events. Further Muslim holidays are Muharram, the Islamic New Year in April-May; Hari Natal, the Prophet Muhammed's birthday in July; and Isra Miraj Nabi Muhammed, the ascencion of the prophet Mumammed in December.