Golden Week is just 2 weeks off. GW, as it's known in Japan, is a week in which several public holidays are contained, including

April 29
The Emperor's Birthday (until 1988)
Greenery Day (1989-2006)
Shōwa Day (2007-present)

May 3
Constitution Memorial Day

May 4
Citizen's Holiday (1985-2006),
Greenery Day (2007-present)

May 5
Children's Day also known as Boys' Day.

(Thanks, Wikipedia.)