January 1 - New Year’s Day February (full moon day) - Makka Bucha April 6 - Chakri Day April 13 - Songkran, Thai New Year May 1 - Labour Day May 5 - Coronation Day May 7 - Ploughing Ceremony May (full moon day) - Visakha Bucha July (full moon day) - Asanha Bucha commemorates the first sermon of Buddha August 12 - Queen’s Birthday October 23 - Chulalongkorn Day December 5 - King’s Birthday December 10 - Constitution Day December 31 - New Year’s Eve