Sunday 01 Jan New Year's Day Friday 06 Jan Pathet Lao Day Friday 20 Jan Army Day Monday 23 Jan Chinese New year Thursday 08 Mar International Women’s Day Thursday 22 Mar Day of the Peoples Party Friday 13 Apr Lao New Year (Pi Mai) Saturday 28 Apr Buddha Birthday (Vesak) Tuesday 01 May Labour Day Friday 01 Jun Children’s Day Tuesday 03 Jul Khao Pansa (Buddhist Fast begins) Monday 13 Aug Lao Issara (Day of the Free Laos) Friday 12 Oct Day of Liberation from the French Tuesday 30 Oct Bouk Ok Pansa (Buddhist Fast ends) Sunday 02 Dec National Day
Source: http://holidayyear.com/Laos-2012-list.php