about 12 hours...
It has been estimated that over the years around 200,000 people have died as a result of this bomb being dropped.
Japan is considered part of Asia. The islands of Japan are off the northeastern and eastern coast of the Asian mainland. Japan is part of the Asian continent. It is an island nation lying to the east of China, North Korea, South Korea, and Russia.
Some say 200,000 people died from the bombs, 70,000 instantly from Fat Man (Hiroshima) and 40,000 instantly from Little Boy (Nagasaki). Some say 340,000 people died.