The Tokyo Olympics will now take place between July 23 and August 8 next year.
The decision was announced by the head of the Tokyo 2020 organising committee on Monday.
"The schedule for the games is key to preparing for the games," Yoshiro Mori said. "This will only accelerate our progress."
He added that the Paralympic Games will run from August 24 to September 5.
The decision to postpone the sporting event was taken over concerns surrounding the coronavirus epidemic.


Ferdinand admits doubts over Pochettino's impact on Manchester United
Mbappe out for France's Nations League fixture
Andreeva reaches WTA Finals semis, Svitolina fights back to beat Muchova
Victory Team's Ahmad Al Fahim takes on Dubai T100 for third year running
FIFA clears joint bids for 2031 and 2035 Women's World Cups
