Nagasaki Memorial Day
Sunday, August 9, 2026
Nagasaki Memorial Day commemorates the victims of the atomic bombing of Nagasaki on 9 August 1945 and calls for the abolition of nuclear weapons. Observed on 9 August, it is marked by the Nagasaki Peace Memorial Ceremony at the Peace Memorial Park and by the tradition of a minute of silence at 11:02 a.m., the exact time of the explosion.
History
On 9 August 1945 the United States dropped an atomic bomb on Nagasaki, three days after the bombing of Hiroshima. The explosion and the resulting fires destroyed much of the city and killed roughly 70,000 people, a large share of them children. The Japanese government declared 9 August a national holiday in 1946 to honour the victims and to appeal for permanent peace. The Nagasaki Peace Memorial Park, built on the hypocenter site with a belfry, a monument and a Flame of Peace lit in 1989, is the centre of commemoration.
How It's Celebrated
Every 9 August, a state-led ceremony at Nagasaki Peace Memorial Park is attended by the Prime Minister, atomic bomb survivors and representatives of other nuclear-armed states, including the United States. At 11:02 a.m. a moment of silence is observed across the city. Ceremonies are held at the hypocenter site and the hypocenter museum, and throughout the year the city hosts educational and youth exchange programmes promoting nuclear disarmament.