Thailandの公的祝日 12月 2026

12月 2026 in Thailand runs 31 calendar days, the depth of Northern-hemisphere winter and Southern-hemisphere summer. Thailand observes 4 public holidays in 12月 2026: King Bhumibol's Birthday, King Bhumibol's Birthday Observed, Constitution Day, New Year's Eve. 3 of those fall on weekdays and reduce the working-day count accordingly. That leaves 20 working days for Thailand businesses, payroll cycles, and project schedules in 12月 2026. December centres on the Christmas long weekend in Christian countries and a cluster of solstice and winter-celebration days globally. For broader context, see the full 2026 calendar for Thailand or the global view of holidays observed in 12月 2026 across all 190 countries we cover.