Embassy's Holidays 2008
Tuesday 1 Jan New Year's Holiday
Wednesday 2 Jan New Year's Holiday
Thursday 3 Jan New Year's Holiday
Mon 5 May Coronation Day (Substitution)
Tuesday 23 Dec Emperor’s Birthday
Monday 29 Dec Year-end Holiday
Tuesday 30 Dec Year-end Holiday
Wednesday 31 Dec New Year’s Eve
Source: http://www.th.emb-japan.go.jp/en/embassy/holiday2008.htm