What is the time difference between Seoul and tehran?

The time in Iran is UTC + 3.5 hrs. during Standard Time and UTC + 4.5 hrs. during Daylight Saving Time, and the time in South Korea is always UTC + 9 hrs., so when Iran is on Daylight Saving Time, South Korea is 4.5 hrs. ahead, and when Iran is on Standard Time, South Korea is 5.5 hrs. ahead.

Iran observes Daylight Saving Time from the 21st or 22nd of March to the 21st or 22nd of September.