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.

Karachi to Tehran

-1h 30m

Karachi

PKTSOURCE

Pakistan · UTC+05:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Tehran

IRST

Iran · UTC+03:30

HH10

MM30

10:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Karachi

Tehran

12:00 AM

10:30 PM-1

2:00 AM

12:30 AM

4:00 AM

2:30 AM

6:00 AM

4:30 AM

8:00 AM

6:30 AM

10:00 AM

8:30 AM

12:00 PM

10:30 AM

2:00 PM

12:30 PM

4:00 PM

2:30 PM

6:00 PM

4:30 PM

8:00 PM

6:30 PM

10:00 PM

8:30 PM

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

PKT and IRST on the World Map

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

PKT Zone

→

IRST Zone

Explore all world timezones interactively →

PKT – Pakistan Standard Time

UTC+05:00

Pakistan Standard Time (PKT) is the time zone for Pakistan, 5 hours ahead of UTC.

Countries in PKT

Pakistan

Major Cities in PKT

KarachiLahoreIslamabadRawalpindiFaisalabadPeshawar

Key Facts about PKT

•Pakistan does not observe daylight saving time.
•Karachi is one of the world's most populous cities.
•PKT is the same offset as Uzbekistan (UZT) and Yekaterinburg (YEKT).

Daylight Saving:No – UTC+05:00 year-round

Learn more about PKT 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 Karachi

Wikipedia

Karachi operates on Pakistan Standard Time (PKT), UTC+5. As Pakistan's financial hub and largest port city, Karachi time drives South Asian commerce.

Population:14.9 million

Metro:16.5 million

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

Currency:PKR (₨)

Stock Exchange:PSX (Pakistan Stock Exchange)

Key Landmarks

Quaid-e-Azam's MausoleumMohatta PalaceClifton BeachPort GrandPAF Museum

Did You Know?

Karachi is one of the fastest-growing megacities in the world.

Learn more about PKT timezone →

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: Karachi and Tehran

Karachi runs on Pakistan Standard Time (PKT) at UTC+05:00. Tehran runs on Iran Standard Time (IRST) at UTC+03:30. That puts Karachi 1 hour 30 minutes behind Tehran — a difference of -1h 30m at the current offsets.

In practice, when it is 9:00 AM in Karachi it is 7:30 AM in Tehran. Midnight in Karachi is 10:30 PM in Tehran. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Karachi to Tehran time conversion table

Karachi (PKT)	Tehran (IRST)	Day
12:00 AM	10:30 PM	previous day
6:00 AM	4:30 AM	same day
7:00 AM	5:30 AM	same day
8:00 AM	6:30 AM	same day
9:00 AM	7:30 AM	same day
12:00 PM	10:30 AM	same day
3:00 PM	1:30 PM	same day
5:00 PM	3:30 PM	same day
6:00 PM	4:30 PM	same day
9:00 PM	7:30 PM	same day

Why people convert Karachi to Tehran time

Scheduling a call from Karachi to Tehran: a 10:00 AM start in Karachi lands at 8:30 AM in Tehran, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Karachi and Tehran are inside the 9-to-5 working day between 10:30 AM and 5:00 PM PKT time (9:00 AM–3:30 PM IRST). That is roughly 6 hours 30 minutes of usable overlap.
Watching a live event or market open: Karachi viewers need 7:30 AM in Tehran to catch a 9:00 AM start there, and 1:30 AM if the event is anchored to Karachi.

Always state the zone abbreviation, not just the hour. "3:00 PM PKT" is unambiguous; "3 PM" across a -1h 30m gap is not.
Block 10:30 AM–5:00 PM PKT as the recurring meeting window if you work primarily from Karachi and need Tehran colleagues present.

About PKT (Pakistan Standard Time)

Pakistan Standard Time (PKT) is the time zone used throughout Pakistan. PKT does not observe daylight saving time. Pakistan is the 5th most populous country in the world.

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 Karachi and Tehran

Both Karachi and Tehran sit inside the 9 AM – 5 PM working day between 10:30 AM–5:00 PM PKT, which is 9:00 AM–3:30 PM IRST. That gives roughly 6 hours and 30 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

Karachi and Tehran share 6 hours of working-hours overlap (10:30 AM–5:00 PM PKT), so scheduling a live meeting is straightforward.

Karachi is 1 hour 30 minutes behind Tehran (PKT UTC+05:00 → IRST UTC+03:30). The shared working window is 10:30 AM–5:00 PM PKT. Remember to re-check around daylight-saving transitions.

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 Karachi and Tehran?

Karachi (PKT, UTC+05:00) is 1 hour 30 minutes behind Tehran (IRST, UTC+03:30). The gap is currently -1h 30m.

How do I convert Karachi time to Tehran time?

Add -1h 30m to Karachi local time. For example, 9:00 AM in Karachi is 7:30 AM 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 -1h 30m offset from Karachi.

What is the best time to call Tehran from Karachi?

Call between 10:30 AM and 5:00 PM PKT — that maps to 9:00 AM–3:30 PM IRST and keeps both parties inside the working day.

Which is behind, Karachi or Tehran?

Karachi is 1 hour 30 minutes behind Tehran. When it is 12:00 PM in Karachi it is 10:30 AM in Tehran.

Do Karachi and Tehran use different time zones?

Karachi (Pakistan) uses PKT at UTC+05:00, while Tehran (Iran) uses IRST at UTC+03:30. The IANA identifiers are Asia/Karachi and Asia/Tehran.

Does daylight saving time affect the Karachi–Tehran difference?

Neither zone observes daylight saving time, so the -1h 30m offset between Karachi and Tehran is fixed all year.

Which other cities share Karachi's time zone?

PKT also covers Karachi, Lahore, Islamabad, Rawalpindi, Faisalabad, Peshawar.

Which countries use PKT, Karachi's zone?

PKT is used in Pakistan.

Is there a day difference between Karachi and Tehran?

Not normally. The -1h 30m gap only pushes the date over the previous day.

What is the time difference between Karachi and Tehran?

Tehran is -1h 30m from Karachi.

What timezone is Karachi in?

Karachi operates on Pakistan Standard Time (PKT), UTC+5. As Pakistan's financial hub and largest port city, Karachi time drives South Asian commerce.

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.

What are the business hours in Karachi?

Standard business hours in Karachi are 9:00 AM - 5:00 PM PKT.

What are the business hours in Tehran?

Standard business hours in Tehran are 8:00 AM - 4:00 PM IRST.

What is the best time to schedule a call between Karachi and Tehran?

The best overlap for a call is when both cities are in business hours. Karachi works 9:00 AM - 5:00 PM PKT and Tehran works 8:00 AM - 4:00 PM IRST (-1h 30m difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Karachi and Tehran?

Karachi uses PKR (₨) while Tehran uses IRR (﷼). Check current exchange rates when planning travel or business between these cities.

How do Karachi and Tehran compare in size?

Karachi has a population of approximately 14.9 million (metro: 16.5 million), while Tehran has approximately 9.4 million (metro: 16.8 million).

What are the major landmarks in Karachi and Tehran?

Karachi is known for Quaid-e-Azam's Mausoleum, Mohatta Palace, Clifton Beach. Tehran is famous for Azadi Tower, Golestan Palace, Grand Bazaar.

Do Karachi and Tehran have stock exchanges?

Yes. Karachi has the PSX (Pakistan Stock Exchange) and Tehran has the TSE (Tehran Stock Exchange). The -1h 30m time difference affects trading hour overlaps between these exchanges.