The Japanese authorities decided to extend the emergency mode until 05/31/2020 inclusive. This step of the country's leadership is aimed at preventing the spread of coronavirus infection throughout the state. This was announced by the head of the Japanese government.
However, it should be noted that in the event of an improvement in the epidemiological situation, restrictive measures may be lifted before the deadline, but this issue will be resolved after consultation with specialists scheduled for 05/14/2020.
Note that the emergency mode was initially introduced in Tokyo - 04/08/2020, and then in several more prefectures. After that, on 04/16/2020, the emergency regime spread throughout Japan. It was assumed that the restrictions will be valid until 05/06/2020.