HM Queen Suthida's Birthday is a public holiday in Thailand, known locally as วันเฉลิมพระชนมพรรษาสมเด็จพระนางเจ้าสุทิดา พัชรสุธาพิมลลักษณ พระบรมราชินี.
In 2026 it falls on Wednesday 3 June; in 2027 on Thursday 3 June.
The date is fixed, so only the weekday changes from year to year.
Dates, 2025 to 2028
| Year | Date | Weekday | Note |
|---|---|---|---|
| 2025 | 3 June | Tuesday | |
| 2026 | 3 June | Wednesday | |
| 2027 | 3 June | Thursday | |
| 2028 | 3 June | Saturday weekend |