What this is
5 December is the birthday observance of the late King Bhumibol, Thailand's National Day and Father's Day. Because it falls on Saturday in 2026, the official financial-institution closure is Monday 7 December; this page lists the closure date rather than implying a continuous three-day public holiday.
Why go
- Official substitute bank holiday on 7 December
- 5 December remains the commemorative date
- National Day and Father's Day context
Plan it well
- Do not treat 5–7 December as one continuous statutory holiday
- Plan banking and government services around the Monday closure
Sources checked
Dates and planning claims were checked against the following current pages.
