Dassain is a public holiday in Bhutan, known locally as ལྷོ་མཚམས་ད་སའིན་ངལ་གསོ།.
In 2026 it falls on Wednesday 21 October; in 2027 on Saturday 9 October.
It follows the lunar calendar: the dates shown are estimates and may shift by a day once the moon is sighted.
Dates, 2025 to 2028
| Year | Date | Weekday | Note |
|---|---|---|---|
| 2025 | 2 October | Thursday | |
| 2026 | 21 October | Wednesday | |
| 2027 | 9 October | Saturday weekend | estimated date |
| 2028 | 27 September | Wednesday | estimated date |