Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

Iran to Los Angeles

-10h 30m

Iran

IRSTSOURCE

UTC+03:30

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Los Angeles

PDT

USA · UTC-07:00☀ DST active

HH01

MM30

01:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Iran

Los Angeles

12:00 AM

1:30 PM-1

2:00 AM

3:30 PM-1

4:00 AM

5:30 PM-1

6:00 AM

7:30 PM-1

8:00 AM

9:30 PM-1

10:00 AM

11:30 PM-1

12:00 PM

1:30 AM

2:00 PM

3:30 AM

4:00 PM

5:30 AM

6:00 PM

7:30 AM

8:00 PM

9:30 AM

10:00 PM

11:30 AM

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

IRST and PDT on the World Map

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

IRST Zone

→

PDT Zone

Explore all world timezones interactively →

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

PST – Pacific Standard Time

UTC-08:00

Pacific Standard Time (PST) is the time zone for the US and Canadian Pacific coast, 8 hours behind UTC.

Countries in PST

United States (Pacific)Canada (British Columbia)Mexico (Baja California)

Major Cities in PST

Los AngelesSan FranciscoSeattleVancouverSan DiegoPortlandLas VegasSacramentoSan JoseTijuana

Key Facts about PST

•Silicon Valley and the world's biggest tech companies operate on Pacific Time.
•The Hollywood film industry runs on PST/PDT.
•PST is 3 hours behind EST, creating a significant business hours gap.
•Vancouver, Canada's third-largest city, uses PST.

Daylight Saving:Yes – switches to PDT

Learn more about PST on Wikipedia

About Los Angeles

Wikipedia

Los Angeles operates on Pacific Time (PST/PDT), 3 hours behind New York. As the entertainment capital, LA time is important for media and tech industries.

Population:4 million

Metro:13.2 million

Business Hours:9:00 AM - 5:00 PM PST

Currency:USD ($)

Key Landmarks

Hollywood SignSanta Monica PierGriffith ObservatoryWalt Disney Concert HallGetty Center

Did You Know?

Los Angeles is the entertainment capital of the world, home to Hollywood and major film studios.

Learn more about PDT timezone →

Time Conversion Guide: Iran to Los Angeles

Iran runs on Iran Standard Time (IRST) at UTC+03:30. Los Angeles runs on Pacific Daylight Time (PDT) at UTC-07:00, also currently on daylight saving time. That puts Iran 10 hours 30 minutes behind Los Angeles — a difference of -10h 30m at the current offsets.

In practice, when it is 9:00 AM in Iran it is 10:30 PM in Los Angeles on the previous day. Midnight in Iran is 1:30 PM in Los Angeles.Los Angeles observes daylight saving time while Iran does not, so the gap narrows or widens by an hour part of the year.

Iran to Los Angeles time conversion table

Iran (IRST)	Los Angeles (PDT)	Day
12:00 AM	1:30 PM	previous day
6:00 AM	7:30 PM	previous day
7:00 AM	8:30 PM	previous day
8:00 AM	9:30 PM	previous day
9:00 AM	10:30 PM	previous day
12:00 PM	1:30 AM	same day
3:00 PM	4:30 AM	same day
5:00 PM	6:30 AM	same day
6:00 PM	7:30 AM	same day
9:00 PM	10:30 AM	same day

Why people convert Iran to Los Angeles time

Scheduling a call from Iran to Los Angeles: a 10:00 AM start in Iran lands at 11:30 PM in Los Angeles the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -10h 30m gap: Iran and Los Angeles 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 Los Angeles is 10:30 PM in Iran.
Booking travel or deliveries: tracking Los Angeles local time against Iran keeps pickup windows and arrival estimates honest across the -10h 30m offset.

Always state the zone abbreviation, not just the hour. "3:00 PM IRST" is unambiguous; "3 PM" across a -10h 30m gap is not.
With a -10h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week Iran takes the early slot, the next week Los Angeles does.
Los Angeles: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.

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.

About PST (Pacific Standard Time)

Pacific Standard Time (PST) covers the west coast of North America, including tech hubs like San Francisco and Seattle, and entertainment capital Los Angeles. The Pacific Time Zone is home to Silicon Valley and the world's largest technology companies. During summer, clocks advance to Pacific Daylight Time (PDT, UTC-07:00). PST is also observed in Baja California, Mexico.

Best time to call between Iran and Los Angeles

With a -10h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. Los Angeles opens at 9:00 AM PDT, which is 10:30 PM in Iran, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Iran and Los Angeles have no shared working hours because of the -10h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.

Iran is 10 hours 30 minutes behind Los Angeles (IRST UTC+03:30 → PDT UTC-07:00). 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

Iran

Does not observe DST

Los Angeles

☀ Currently in DST

Standard: UTC-08:00 · DST: UTC-07:00

Clocks fall back on Sun, Nov 1, 2026

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 Iran and Los Angeles?

Iran (IRST, UTC+03:30) is 10 hours 30 minutes behind Los Angeles (PDT, UTC-07:00). The gap is currently -10h 30m.

How do I convert Iran time to Los Angeles time?

Add -10h 30m to Iran local time. For example, 9:00 AM in Iran is 10:30 PM in Los Angeles (previous day).

What time is it in Los Angeles right now?

Los Angeles uses PDT at UTC-07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -10h 30m offset from Iran.

What is the best time to call Los Angeles from Iran?

There is no shared working-hours window because of the -10h 30m gap. The closest option is 1:00 PM in Iran, which is 2:30 AM in Los Angeles.

Which is behind, Iran or Los Angeles?

Iran is 10 hours 30 minutes behind Los Angeles. When it is 12:00 PM in Iran it is 1:30 AM in Los Angeles.

Do Iran and Los Angeles use different time zones?

Iran (Iran) uses IRST at UTC+03:30, while Los Angeles (USA) uses PDT at UTC-07:00. The IANA identifiers are Asia/Tehran and America/Los_Angeles.

Does daylight saving time affect the Iran–Los Angeles difference?

Yes at the moment: Los Angeles is on daylight saving time and Iran is not, so the -10h 30m gap shifts by an hour when exactly one of them changes clocks.

Which other cities share Iran's time zone?

IRST also covers Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.

Which countries use IRST, Iran's zone?

IRST is used in Iran.

Is there a day difference between Iran and Los Angeles?

Not normally. The -10h 30m gap only pushes the date over the previous day.

What is the time difference between Iran and Los Angeles?

Los Angeles is -10h 30m from Iran.

What timezone is Iran in?

Iran operates on its local timezone.

What timezone is Los Angeles in?

Los Angeles operates on Pacific Time (PST/PDT), 3 hours behind New York. As the entertainment capital, LA time is important for media and tech industries.