Time in Iran Right Now

Iran follows Iran Standard Time (IRST, UTC+3:30) in winter and Iran Daylight Time (IRDT, UTC+4:30) during summer as the current time. The country, located in Western Asia, observes Daylight Saving Time (DST) annually, moving clocks forward one hour from March 21 (Nowruz, Persian New Year) to September 21.

As a result, the time remains consistent across all major cities, including Tehran, Mashhad, Isfahan, Shiraz, and Tabriz, ensuring unified national coordination.
This system helps align Iran’s daylight hours with neighboring regions while supporting business and communication efficiency within the country.

Standard settings for right time

• IANA Time Zone: Asia/Tehran

• UTC Offset: UTC +3:30 (Standard Time), UTC +4:30 (Daylight Time)

• Time Format: 24-hour clock

• DST Observed: Yes (March–September)

• Time Zone Abbreviation: IRST / IRDT

Iran’s time zone is unique for its half-hour offset, setting it apart from most countries in the Middle East.

Iran time zone(s)

Iran uses a single national time zone across the country.

The official IANA identifier for Iran is Asia/Tehran.

Daylight Saving Time in Iran

Iran observes Daylight Saving Time (DST) annually. The clocks remain at UTC+3:30 during standard time and shift to UTC+4:30 during DST. As a result, airlines, business schedules, and international communication stay aligned during daylight hours.

In the absence of DST (winter), there is no confusion caused by other countries’ time adjustments.

Major cities in Iran & their time

All citizens in Iran follow the same coordinated schedule year-round.

Brief Information — Iran time

• Number of time zones: 1 (nationwide)

• Capital city: Tehran

• Default time zone: Iran Standard Time (IRST)

• Daylight Saving Time: Observed (March–September)

• IANA Time Zone ID: Asia/Tehran

• Standard UTC offset: +3:30 hours

• DST UTC offset: +4:30 hours

• Time format: 24-hour system

• Neighbouring countries with same time: None — unique offset

• Regional differences: None — uniform time nationwide

For verified background, see 👉 Time in Iran — Wikipedia.

Pros and Cons

Pros

1. Single time zone — simplifies national scheduling.

2. DST increases daylight — optimizes summer productivity.

3. Unique half-hour offset — precise alignment with daylight hours.

4. 24-hour format — standard for aviation and government use.

5. Globally recognized IANA ID — ensures digital accuracy.

Cons

1. DST clock changes twice a year may cause adjustment issues.

2. Half-hour offset can create minor confusion in international scheduling.