Tasua is a public holiday in Iran, known locally as تاسوعای حسینی.
In 2026 it falls on Wednesday 24 June; in 2027 on Tuesday 15 June.
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 | 5 July | Saturday weekend | |
| 2026 | 24 June | Wednesday | |
| 2027 | 15 June | Tuesday | estimated date |
| 2028 | 3 June | Saturday weekend | estimated date |