Bangladesh has numerous public holidays, including national memorial, religious and secular holidays of Bengali origin. The Bengali traditional calendar, known as Baṅgābda is the national and official calendar in Bangladesh. The holidays are celebrated according to Bengali, Islamic or Gregorian calendars for religious and civil purposes, respectively. Religious festivals like Eid are celebrated according to the Islamic calendar, whereas other national holidays are celebrated according to the Bengali and Gregorian calendar. While, the Islamic calendar is based on the movement of the moon, it loses synchronization with the seasons, through seasonal drift. Therefore, some public holidays are subject to change every year based on the lunar calendar.
The day is observed in Bangladesh, marks one of the most sacred days in the Islamic calendar, signifying the last Friday of Ramadan. It is a day of profound prayer and reflection, where Muslims across the nation gather in mosques, seeking forgiveness and blessings in the closing moments of this holy month.
