Iran · IRST
Tue, 15 Sept 2026
Timezone Guide
Shiraz, 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 Shiraz 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 Shiraz lines up with 09:00–10:30 in New York. There is a 2.5-hour difference between Shiraz 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 Shiraz lines up with 09:00–15:30 in London. There is a 5.5-hour difference between Shiraz 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 Shiraz lines up with 14:30–18:00 in Tokyo. This timezone is also shared with cities such as Tehran, Isfahan, Tabriz. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Shiraz.
Practical Info
Shiraz (Iran) is home to roughly 1.6M people. Today brings about 14.0 hours of daylight: sunrise at 05:06, sunset at 19:06. This time zone stays fixed year-round at UTC+3:30 — daylight saving time is not observed. It sits in the Northern Hemisphere, about 30° north of the equator. Traffic drives on the right.
Flag
Iran
Capital
Tehran
Continent
Asia
Time Zone
IRST · Asia/Tehran
Coordinates
29.61°N, 52.54°E
Currency
IRR (﷼)
Calling Code
+98
Driving Side
Right
Hemisphere
Northern
Language
Persian
Measurement System
Metric
Did You Know?
Hafez died in 1390, and Iranians still open his collected poems at random to answer a question — fal-e Hafez. His tomb in Shiraz is one of the most visited sites in the country, and the practice is treated as a national pastime rather than a superstition.
The clock: Shiraz keeps UTC+3:30, one of the few half-hour offsets left. Iran dropped its seasonal clock change in 2022.
Annual Daylight
Working Hours
8.5h overlap