Calendar invites
Iran (no DST since 2022) has no sampled DST transition, so recurring meetings are simpler inside this zone, but still shift relative to DST-observing countries.
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DST calendar
IANA zone: Asia/Tehran. Transitions from 2024 through 2029.
Last updated recently. DST rows are generated from the IANA timezone record for Asia/Tehran. The page is a planning reference, not a legal notice; check local government announcements for emergency or newly legislated clock changes.
Live values rendered at Jun 7, 10:01 PM UTC.
Quick answer
Iran (no DST since 2022) does not currently show a daylight-saving transition in the sampled IANA range, so the local civil clock stays on the same UTC offset in this model.
IANA zone
Asia/Tehran
Current offset
UTC+03:30
Source type
IANA model only
Iran no longer observes daylight saving in current IANA rules after ending seasonal clock changes in 2022.
Current offset signal
UTC+03:30
Next transition
No upcoming transition in the sampled range
Transition months in range
none in this range
Pattern summary
No spring-forward or fall-back transition appears in the sampled IANA range.
Iran (no DST since 2022) has no sampled DST transition, so recurring meetings are simpler inside this zone, but still shift relative to DST-observing countries.
Use the local time after the transition for departures, hotel check-ins, and event tickets. The repeated fall-back hour can make same-night schedules ambiguous.
Store timestamps in UTC, then render wall-clock time with Asia/Tehran. Spring-forward gaps and fall-back repeats should not be hand-coded from country names.
The transition rows below are computed from the IANA timezone database for Asia/Tehran. The policy source is shown separately so users can distinguish machine-readable timezone math from legal or government clock-change notices.
Used for the exact UTC instants, abbreviations, and before/after offsets on this page.
Check IANA Time Zone DatabaseLocal law can change after a deployment. Treat this page as a timezone calculation reference, then confirm policy changes with the relevant government or time-authority source.
DST policy evidence
Practical use cases
Trust boundaries
These retained city pages use the same IANA zone as this DST reference. Open them when you need live local time, travel context, holidays, airports, or city-level planning rather than the zone transition table alone.
Reference fields include the IANA zone, current offset, next transition, transition months, pattern summary, policy-source label, related city clocks, and sampled before/after abbreviations.