Birthday of Mahdi is a public holiday in Iran, known locally as ولادت حضرت قائم عجل الله تعالی فرجه و جشن نیمه شعبان.
In 2026 it falls on Wednesday 4 February; in 2027 on Sunday 24 January.
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 | 14 February | Friday long weekend | |
| 2026 | 4 February | Wednesday | |
| 2027 | 24 January | Sunday weekend | estimated date |
| 2028 | 13 January | Thursday | estimated date |