Iranian Oil Industry Nationalization Day is a public holiday in Iran, known locally as روز ملی شدن صنعت نفت ایران.
In 2026 it falls on Friday 20 March; in 2027 on Saturday 20 March.
Dates, 2025 to 2028
| Year | Date | Weekday | Note |
|---|---|---|---|
| 2025 | 19 March | Wednesday | |
| 2026 | 20 March | Friday long weekend | |
| 2027 | 20 March | Saturday weekend | |
| 2028 | 19 March | Sunday weekend |