Tuesday 01 Jan New Year's Day
Monday 14 Jan Coming of Age Day
Monday 11 Feb National Foundation Day
Wednesday 20 Mar Vernal Equinox Day
Monday 29 Apr Showa Day
Friday 03 May Constitution Day
Saturday 04 May Greenery Day
Monday 06 May Childrens' Day
Monday 15 Jul Marine Day
Monday 16 Sep Respect for the Aged Day
Monday 23 Sep Autumnal Equinox Day
Monday 14 Oct Health-Sports Day
Monday 04 Nov Culture Day
Monday 25 Nov Labour Thanksgiving Day
Monday 23 Dec The Emperor's Birthday
Source: http://www.officeholidays.com/countries/japan/2013.asp