Iran · IRST
Tue, 15 Sept 2026
Timezone Guide
Qom, Iran runs on UTC+3:30. This time zone stays fixed year-round at UTC+3:30 — daylight saving time is not observed. There is a 7.5-hour difference between Qom and New York. Standard 9-to-6 working hours overlap for about 1.5 hours a day with New York. A good time to connect: 16:30–18:00 in Qom lines up with 09:00–10:30 in New York. There is a 2.5-hour difference between Qom and London. Standard 9-to-6 working hours overlap for about 6.5 hours a day with London. A good time to connect: 11:30–18:00 in Qom lines up with 09:00–15:30 in London. There is a 5.5-hour difference between Qom and Tokyo. Standard 9-to-6 working hours overlap for about 3.5 hours a day with Tokyo. A good time to connect: 09:00–12:30 in Qom lines up with 14:30–18:00 in Tokyo. This timezone is also shared with cities such as Tehran, Isfahan, Shiraz. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Qom.
Practical Info
Qom (Iran) is home to roughly 1.2M people. Today brings about 14.5 hours of daylight: sunrise at 04:54, sunset at 19:24. This time zone stays fixed year-round at UTC+3:30 — daylight saving time is not observed. It sits in the Northern Hemisphere, about 35° north of the equator. Traffic drives on the right.
Flag
Iran
Capital
Tehran
Continent
Asia
Time Zone
IRST · Asia/Tehran
Coordinates
34.64°N, 50.88°E
Currency
IRR (﷼)
Calling Code
+98
Driving Side
Right
Hemisphere
Northern
Language
Persian
Measurement System
Metric
Did You Know?
Qom's Islamic seminaries teach tens of thousands of students from dozens of countries, which makes it one of the most important centres of Shia scholarship in the world alongside Najaf. The shrine of Fatima Masumeh is its centre.
The clock: Qom keeps UTC+3:30. Iran's half-hour offset was chosen in 1977 to place solar noon closer to clock noon across the whole country.
Annual Daylight
Working Hours
8.5h overlap