Pakistan Day (, lit. Youm-e-Pakistan) or Pakistan Resolution Day, also Republic Day, is a national holiday in Pakistan to commemorate the Lahore Resolution of 1940 and the adoption of the first constitution of Pakistan during the transition of the Dominion of Pakistan to the Islamic Republic of Pakistan on 23 March 1940 making Pakistan the world's first Islamic republic. Republic Day parade by the armed forces is a common celebration for the event.