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Tehran Time - Current Local Time & Timezone

Current local time in Tehran, Iran.

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Tehran Time Zone Guide

This live clock shows the current local time in Tehran, Iran using the timezone identifier Asia/Tehran. The display updates every second and reflects the timezone rules provided by your browser, including daylight saving time changes when the region observes them.

Use this page when scheduling a call, planning travel, checking market hours, or confirming the local date before sending a message. If you need to watch several locations at once, return to the world clocks grid.

Planning with Tehran Time

TaskWhat to check
Schedule a meetingCompare Tehran business hours against your local time.
Book travelConfirm whether arrival time falls on the same calendar date.
Join a livestreamUse the local event time and create a countdown to date.
Set a reminderUse the alarm clock after converting the time to your timezone.

About Tehran Time

Tehran uses Iran Standard Time (IRST, UTC+3:30) in winter and Iran Daylight Time (IRDT, UTC+4:30) during summer, with DST transitions tied to the Iranian solar calendar (Nowruz around March 21 and autumn equinox around September 22). Tehran's 30-minute UTC offset is one of the world's few non-whole-hour gaps, making it an outlier in global scheduling tools that often handle fractional offsets poorly.

The Tehran Stock Exchange (TSE) trades from 9:00 AM to 12:30 PM IRST/IRDT Sunday through Thursday. Iran is a significant oil producer and a member of OPEC, and TSE session timing and announcements from the Central Bank of Iran can affect energy-related derivative pricing globally. Tehran's unusual half-hour offset is shared by only a handful of other timezones worldwide — most notably India (UTC+5:30) and Afghanistan (UTC+4:30).

The 30-minute offset creates practical friction: a Tehran meeting scheduled 'at 3:00 PM' appears in European calendars at 11:30 AM GMT (winter) or 10:30 AM BST (summer), which catches people unfamiliar with IRST off guard. Between Tehran and Dubai (UTC+4 fixed), the gap is 30 minutes year-round — a common source of scheduling errors in Gulf-Iran business interactions.

Tehran Time Zone Facts

  • UTC offset: UTC+3:30 (IRST) in winter, UTC+4:30 (IRDT) in summer; DST follows Iranian solar calendar.
  • Tehran's 30-minute offset is one of the world's rare non-whole-hour UTC gaps.
  • TSE trades 9:00 AM to 12:30 PM IRST/IRDT, Sunday to Thursday.
  • Tehran is 30 minutes behind Dubai year-round (IRST vs. GST, IRDT vs. GST+0.5).

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