Current Time in Tehran

Daylight saving time in Tehran

Tehran does not observe daylight saving time. Its offset stays at UTC+03:30 every day of the year, which makes it one of the simpler zones to work with: a fixed offset is enough to convert any timestamp, and there are no missing or repeated local hours.

Converting timestamps for this zone in code

Always pass the IANA identifier Asia/Tehran rather than a numeric offset. The identifier carries the zone's entire history of offset and daylight saving changes, so a timestamp from any year converts correctly; a hard-coded offset is only right until the next rule change.

# Python
from datetime import datetime
from zoneinfo import ZoneInfo
datetime.fromtimestamp(1710050400, ZoneInfo("Asia/Tehran"))

// JavaScript
new Intl.DateTimeFormat('en-GB', { timeZone: 'Asia/Tehran',
  dateStyle: 'full', timeStyle: 'long' }).format(new Date(1710050400 * 1000));

<?php // PHP
(new DateTimeImmutable("@1710050400"))->setTimezone(new DateTimeZone("Asia/Tehran"));

More languages on the code examples pages.

How this zone's rules have changed since 1970

Tehran has changed its arrangement 8 times since 1970. This is why a stored offset is not a substitute for the zone identifier — a timestamp from before a change converts incorrectly if you apply today's rule to it.

Boundaries are the years the change took effect, derived from the same IANA database your language's date library reads.

When it is 12:00 in Tehran

Midday here against the clocks most schedules are written around, for Thursday, 22 October 2026 at 12:00:00 IRST:

Zones currently on UTC+03:30

No other IANA zone is on UTC+03:30 right now, which makes Asia/Tehran the only identifier that produces this offset today. Offsets are shared and reused over time, so this is a statement about the present moment, not a permanent property.