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.

Tehran to Karachi

+1h 30m

Tehran

IRSTSOURCE

Iran · UTC+03:30

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Karachi

PKT

Pakistan · UTC+05:00

HH01

MM30

13:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Tehran

Karachi

12:00 AM

1:30 AM

2:00 AM

3:30 AM

4:00 AM

5:30 AM

6:00 AM

7:30 AM

8:00 AM

9:30 AM

10:00 AM

11:30 AM

12:00 PM

1:30 PM

2:00 PM

3:30 PM

4:00 PM

5:30 PM

6:00 PM

7:30 PM

8:00 PM

9:30 PM

10:00 PM

11:30 PM

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

IRST and PKT on the World Map

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

IRST Zone

→

PKT 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

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

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 →

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 →

Everything You Need to Know About Tehran and Karachi Time

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

In practice, when it is 9:00 AM in Tehran it is 10:30 AM in Karachi. Midnight in Tehran is 1:30 AM in Karachi. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Tehran to Karachi time conversion table

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

Why people convert Tehran to Karachi time

Scheduling a call from Tehran to Karachi: a 10:00 AM start in Tehran lands at 11:30 AM in Karachi, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Tehran and Karachi are inside the 9-to-5 working day between 9:00 AM and 3:30 PM IRST time (10:30 AM–5:00 PM PKT). That is roughly 6 hours 30 minutes of usable overlap.
Booking travel or deliveries: tracking Karachi local time against Tehran keeps pickup windows and arrival estimates honest across the +1h 30m offset.

Always state the zone abbreviation, not just the hour. "3:00 PM IRST" is unambiguous; "3 PM" across a +1h 30m gap is not.
Block 9:00 AM–3:30 PM IRST as the recurring meeting window if you work primarily from Tehran and need Karachi colleagues present.

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 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.

Best time to call between Tehran and Karachi

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

Business hours overlap

Tehran and Karachi share 6 hours of working-hours overlap (9:00 AM–3:30 PM IRST), so scheduling a live meeting is straightforward.

Tehran is 1 hour 30 minutes ahead of Karachi (IRST UTC+03:30 → PKT UTC+05:00). The shared working window is 9:00 AM–3:30 PM IRST. 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 Tehran and Karachi?

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

How do I convert Tehran time to Karachi time?

Add +1h 30m to Tehran local time. For example, 9:00 AM in Tehran is 10:30 AM in Karachi.

What time is it in Karachi right now?

Karachi uses PKT at UTC+05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h 30m offset from Tehran.

What is the best time to call Karachi from Tehran?

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

Which is ahead, Tehran or Karachi?

Tehran is 1 hour 30 minutes ahead of Karachi. When it is 12:00 PM in Tehran it is 1:30 PM in Karachi.

Do Tehran and Karachi use different time zones?

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

Does daylight saving time affect the Tehran–Karachi difference?

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

Which other cities share Tehran's time zone?

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

Which countries use IRST, Tehran's zone?

IRST is used in Iran.

Is there a day difference between Tehran and Karachi?

Not normally. The +1h 30m gap only pushes the date over for late-evening times.

What is the time difference between Tehran and Karachi?

Karachi is +1h 30m from Tehran.

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 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 are the business hours in Tehran?

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

What are the business hours in Karachi?

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

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

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

What currencies are used in Tehran and Karachi?

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

How do Tehran and Karachi compare in size?

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

What are the major landmarks in Tehran and Karachi?

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

Do Tehran and Karachi have stock exchanges?

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