September 11 is not a public holiday in Pakistan. Instead, it is observed as a day of solemn remembrance marking the death anniversary of the nation's founder, Muhammad Ali Jinnah, who is officially titled Quaid-e-Azam ("Great Leader"). While the date holds significant national importance, it is a regular working day, and government offices, businesses, and educational institutions remain open.
The observance of this day in Pakistan is distinct from and predates the events of September 11, 2001, in the United States. Muhammad Ali Jinnah passed away on this date in 1948. Consequently, the day is commemorated with official ceremonies, particularly at his mausoleum, Mazar-e-Quaid, in Karachi. Activities typically include the laying of floral wreaths by political and military leaders, prayer ceremonies (Fateha), and special broadcasts on state-run media to pay tribute to his life, vision, and leadership during the Pakistan Movement.
In the context of Pakistan's official calendar, the term "holiday" refers to a gazetted public holiday, on which most governmental and private sector organizations are closed. These are typically reserved for major religious festivals such as Eid-ul-Fitr and Eid-ul-Adha, or foundational national days like Pakistan Day (March 23) and Independence Day (August 14). Therefore, while September 11 is a date of high commemorative value, its status is one of observance rather than a public holiday.