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.

IRST to Vancouver

-10h 30m

IRST

IRSTSOURCE

UTC+03:30

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Vancouver

PDT

Canada · UTC-07:00☀ DST active

HH01

MM30

01:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

IRST

Vancouver

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 Vancouver

Wikipedia

Vancouver operates on Pacific Time (PST/PDT), same as Los Angeles. As Canada's gateway to Asia, Vancouver bridges North American and Asian markets.

Population:675,000

Metro:2.6 million

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

Currency:CAD (C$)

Stock Exchange:TSX-V (TSX Venture Exchange)

Key Landmarks

Stanley ParkCapilano Suspension BridgeGastownGranville IslandVancouver Art Gallery

Did You Know?

The city consistently ranks among the world's most livable cities.

Learn more about PDT timezone →

IRST to Vancouver Time Difference – Complete Guide

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

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

IRST to Vancouver time conversion table

IRST (IRST)	Vancouver (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 IRST to Vancouver time

Scheduling a call from IRST to Vancouver: a 10:00 AM start in IRST lands at 11:30 PM in Vancouver the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -10h 30m gap: IRST and Vancouver 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 Vancouver is 10:30 PM in IRST.
Coordinating a IRST-based team with Vancouver 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 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 IRST takes the early slot, the next week Vancouver does.

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 IRST and Vancouver

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

Business hours overlap

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

IRST is 10 hours 30 minutes behind Vancouver (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

IRST

Does not observe DST

Vancouver

☀ Currently in DST

Standard: UTC-08:00 · DST: UTC-07:00

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 IRST and Vancouver?

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

How do I convert IRST time to Vancouver time?

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

What time is it in Vancouver right now?

Vancouver 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 IRST.

What is the best time to call Vancouver from IRST?

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

Which is behind, IRST or Vancouver?

IRST is 10 hours 30 minutes behind Vancouver. When it is 12:00 PM in IRST it is 1:30 AM in Vancouver.

Do IRST and Vancouver use different time zones?

IRST uses IRST at UTC+03:30, while Vancouver (Canada) uses PDT at UTC-07:00. The IANA identifiers are Asia/Tehran and America/Vancouver.

Does daylight saving time affect the IRST–Vancouver difference?

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