Overview
- The India Independence Act, 1947 legally set the creation of both dominions for August 15, 1947, making that the official date in British law.
- Lord Louis Mountbatten sped up British withdrawal to August 1947 because of rising communal violence and later said he chose August 15 in part because it fell on the second anniversary of Japan’s surrender.
- Mountbatten administered Pakistan’s transfer in Karachi on August 14, 1947 and then returned to Delhi for India’s midnight ceremony, a scheduling constraint that produced separate local observances.
- Pakistan’s August 14 observance was reinforced by the night’s coincidence with the 27th night of Ramadan (Laylat al‑Qadr), a 30‑minute time‑zone difference with India, and a 1948 cabinet decision that formalized the date despite no public minutes from that meeting.
- Archival papers and biographies back the basic timeline but historians note a small documentary gap about the 1948 Pakistani cabinet record, and the two dates continue to shape separate national narratives eight decades later.