Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

AKST to Tehran

+12h 30m

AKST

AKSTSOURCE

UTC-08:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Tehran

IRST

Iran · UTC+03:30

HH12

MM30

(next day)00:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

AKST

Tehran

12:00 AM

11:30 AM

2:00 AM

1:30 PM

4:00 AM

3:30 PM

6:00 AM

5:30 PM

8:00 AM

7:30 PM

10:00 AM

9:30 PM

12:00 PM

11:30 PM

2:00 PM

1:30 AM+1

4:00 PM

3:30 AM+1

6:00 PM

5:30 AM+1

8:00 PM

7:30 AM+1

10:00 PM

9:30 AM+1

Green rows indicate typical business hours (9 AM - 5 PM)

AKST and IRST on the World Map

The map below highlights the AKST (Alaska Standard Time) and IRST (Iran Standard Time) timezone regions across the globe.

AKST Zone

→

IRST Zone

Explore all world timezones interactively →

AKST – Alaska Standard Time

UTC-09:00

Alaska Standard Time (AKST) is the time zone for the state of Alaska, 9 hours behind UTC.

Countries in AKST

United States (Alaska)

Major Cities in AKST

AnchorageFairbanksJuneauSitkaWasilla

Key Facts about AKST

•Alaska is the largest US state by area but has only about 730,000 residents.
•Anchorage is the most populous city in AKST with about 290,000 people.
•The Aleutian Islands use HAST instead of AKST.

Daylight Saving:Yes – switches to AKDT

Learn more about AKST on Wikipedia

IRST – Iran Standard Time

UTC+03:30

Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.

Countries in IRST

Iran

Major Cities in IRST

TehranIsfahanMashhadTabrizShirazKaraj

Key Facts about IRST

•IRST is one of only a few time zones with a 30-minute offset.
•Iran observes daylight saving time, switching to IRDT (UTC+04:30).
•Tehran has a metropolitan population of over 16 million.

Daylight Saving:Yes – switches to IRDT

Learn more about IRST on Wikipedia

About Tehran

Wikipedia

Tehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.

Population:9.4 million

Metro:16.8 million

Business Hours:8:00 AM - 4:00 PM IRST

Currency:IRR (﷼)

Stock Exchange:TSE (Tehran Stock Exchange)

Key Landmarks

Azadi TowerGolestan PalaceGrand BazaarMilad TowerTabiat Bridge

Did You Know?

Iran Standard Time (IRST) is one of few timezones with a 30-minute offset (UTC+3:30).

Learn more about IRST timezone →

Comparing Time Zones: AKST and Tehran

AKST runs on Alaska Standard Time (AKST) at UTC-09:00. Tehran runs on Iran Standard Time (IRST) at UTC+03:30. That puts AKST 12 hours 30 minutes ahead of Tehran — a difference of +12h 30m at the current offsets.

In practice, when it is 9:00 AM in AKST it is 9:30 PM in Tehran. Midnight in AKST is 12:30 PM in Tehran. Neither zone observes daylight saving time, so the offset between them stays constant all year.

AKST to Tehran time conversion table

AKST (AKST)	Tehran (IRST)	Day
12:00 AM	12:30 PM	same day
6:00 AM	6:30 PM	same day
7:00 AM	7:30 PM	same day
8:00 AM	8:30 PM	same day
9:00 AM	9:30 PM	same day
12:00 PM	12:30 AM	next day
3:00 PM	3:30 AM	next day
5:00 PM	5:30 AM	next day
6:00 PM	6:30 AM	next day
9:00 PM	9:30 AM	next day

Why people convert AKST to Tehran time

Scheduling a call from AKST to Tehran: a 10:00 AM start in AKST lands at 10:30 PM in Tehran, so you can confirm the slot without doing the arithmetic yourself.
Handling a +12h 30m gap: AKST and Tehran have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Tehran is 9:30 PM in AKST.
Coordinating a AKST-based team with Tehran contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM AKST" is unambiguous; "3 PM" across a +12h 30m gap is not.
With a +12h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week AKST takes the early slot, the next week Tehran does.

About AKST (Alaska Standard Time)

Alaska Standard Time (AKST) is used in nearly all of Alaska. Due to Alaska's vast geographic size, the Aleutian Islands use Hawaii-Aleutian Standard Time instead. During summer months, Alaska switches to Alaska Daylight Time (AKDT, UTC-08:00).

About IRST (Iran Standard Time)

Iran Standard Time (IRST) is one of the few time zones with a 30-minute offset. Iran observes daylight saving time (IRDT, UTC+04:30) from late March to late September. Tehran, the capital, is one of the largest cities in the Middle East.

Best time to call between AKST and Tehran

With a +12h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. Tehran opens at 9:00 AM IRST, which is 9:30 PM in AKST, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

AKST and Tehran have no shared working hours because of the +12h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.

AKST is 12 hours 30 minutes ahead of Tehran (AKST UTC-09:00 → IRST UTC+03:30). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

AKST

☀ Currently in DST

Standard: UTC-09:00 · DST: UTC-08:00

Clocks fall back on Sun, Nov 1, 2026

Tehran

Does not observe DST

Learn More About Time

Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between AKST and Tehran?

AKST (AKST, UTC-09:00) is 12 hours 30 minutes ahead of Tehran (IRST, UTC+03:30). The gap is currently +12h 30m.

How do I convert AKST time to Tehran time?

Add +12h 30m to AKST local time. For example, 9:00 AM in AKST is 9:30 PM in Tehran.

What time is it in Tehran right now?

Tehran uses IRST at UTC+03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the +12h 30m offset from AKST.

What is the best time to call Tehran from AKST?

There is no shared working-hours window because of the +12h 30m gap. The closest option is 1:00 PM in AKST, which is 1:30 AM in Tehran.

Which is ahead, AKST or Tehran?

AKST is 12 hours 30 minutes ahead of Tehran. When it is 12:00 PM in AKST it is 12:30 AM in Tehran.

Do AKST and Tehran use different time zones?

AKST uses AKST at UTC-09:00, while Tehran (Iran) uses IRST at UTC+03:30. The IANA identifiers are America/Anchorage and Asia/Tehran.

Does daylight saving time affect the AKST–Tehran difference?

Neither zone observes daylight saving time, so the +12h 30m offset between AKST and Tehran is fixed all year.

Which other cities share AKST's time zone?

AKST also covers Anchorage, Fairbanks, Juneau, Sitka, Wasilla.

Which countries use AKST, AKST's zone?

AKST is used in United States (Alaska).

Is there a day difference between AKST and Tehran?

Sometimes. The +12h 30m gap is large enough that 8:00 PM or later in AKST already falls on the next day in Tehran.

What is the time difference between AKST and Tehran?

Tehran is +12h 30m from AKST.

What timezone is AKST in?

AKST operates on its local timezone.

What timezone is Tehran in?

Tehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.