Holidays in Iran in 2018
| Date | Weekday | Holiday Name | Holiday Type | |
| Feb 11 | Sunday | Revolution Day | National holiday | |
| Mar 20 | Tuesday | March equinox | Season | |
| Mar 20 | Tuesday | Oil Nationalization Day | National holiday | |
| Mar 21 | Wednesday | Norooz (Persian New Year) | National holiday | |
| Mar 22 | Thursday | Norooz Holiday | National holiday | |
| Mar 23 | Friday | Norooz Holiday | National holiday | |
| Mar 24 | Saturday | Norooz Holiday | National holiday | |
| Mar 30 | Friday | Birthday of Imam Ali | National holiday | |
| Apr 1 | Sunday | Islamic Republic Day | National holiday | |
| Apr 2 | Monday | Nature Day | National holiday | |
| Apr 13 | Friday | Prophet’s Ascension | National holiday | |
| May 2 | Wednesday | Imam Mahdi’s birthday | National holiday | |
| Jun 4 | Monday | Anniversary of Khomeini’s Death | National holiday | |
| Jun 5 | Tuesday | Revolt of Khordad 15 | National holiday | |
| Jun 6 | Wednesday | Martyrdom of Imam Ali | National holiday | |
| Jun 15 | Friday | Eid-e-Fetr (End of Ramadan) | National holiday | |
| Jun 16 | Saturday | Eid-e-Fetr (Additional Holiday) | National holiday | |
| Jun 21 | Thursday | June Solstice | Season | |
| Jul 9 | Monday | Martyrdom of Imam Sadeq | National holiday | |
| Aug 21 | Tuesday | Eid-e-Ghorban (Feast of Sacrifice) | National holiday | |
| Aug 29 | Wednesday | Eid-e-Ghadir | National holiday | |
| Sep 19 | Wednesday | Tassoua | National holiday | |
| Sep 20 | Thursday | Ashura | National holiday | |
| Sep 23 | Sunday | September equinox | Season | |
| Oct 29 | Monday | Arbaeen | National holiday | |
| Nov 7 | Wednesday | Demise of Prophet Muhammad and Martyrdom of Imam Hassan | National holiday | |
| Nov 8 | Thursday | Martyrdom of Imam Reza | National holiday | |
| Nov 25 | Sunday | Birthday of Prophet Muhammad and Imam Sadeq | National holiday | |
| Dec 21 | Friday | December Solstice | Season |