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 Colombo

+0h 30m

Karachi

PKTSOURCE

Pakistan · UTC+05:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Colombo

IST

Sri Lanka · UTC+05:30

HH12

MM30

12:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Karachi

Colombo

12:00 AM

12:30 AM

2:00 AM

2:30 AM

4:00 AM

4:30 AM

6:00 AM

6:30 AM

8:00 AM

8:30 AM

10:00 AM

10:30 AM

12:00 PM

12:30 PM

2:00 PM

2:30 PM

4:00 PM

4:30 PM

6:00 PM

6:30 PM

8:00 PM

8:30 PM

10:00 PM

10:30 PM

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

PKT and IST on the World Map

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

PKT Zone

→

IST 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

IST – India Standard Time

UTC+05:30

India Standard Time (IST) is the time zone for India and Sri Lanka, 5 hours and 30 minutes ahead of UTC.

Countries in IST

IndiaSri Lanka

Major Cities in IST

MumbaiDelhiBangaloreKolkataChennaiHyderabadPuneAhmedabadColomboJaipurLucknowSurat

Key Facts about IST

•India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT.
•India uses a single time zone despite spanning 30° of longitude.
•IST is one of only a handful of time zones with a 30-minute offset.
•IST is the most populous single time zone in the world with over 1.4 billion people.
•The Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) operate on IST.

Daylight Saving:No – UTC+05:30 year-round

Learn more about IST 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 Colombo

Wikipedia

Colombo operates on Sri Lanka Time (SLST), UTC+5:30. Sharing India's timezone, Colombo is a key South Asian trade and tourism hub.

Population:752,000

Metro:5.6 million

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

Currency:LKR (Rs)

Stock Exchange:CSE (Colombo Stock Exchange)

Key Landmarks

Galle Face GreenGangaramaya TempleColombo Lotus TowerIndependence SquareDutch Hospital

Did You Know?

Sri Lanka Standard Time (SLST) uses UTC+5:30, same offset as India.

Learn more about IST timezone →

Understanding the +0h 30m Gap: Karachi vs Colombo

Karachi runs on Pakistan Standard Time (PKT) at UTC+05:00. Colombo runs on India Standard Time (IST) at UTC+05:30. That puts Karachi 30 minutes ahead of Colombo — a difference of +0h 30m at the current offsets.

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

Karachi to Colombo time conversion table

Karachi (PKT)	Colombo (IST)	Day
12:00 AM	12:30 AM	same day
6:00 AM	6:30 AM	same day
7:00 AM	7:30 AM	same day
8:00 AM	8:30 AM	same day
9:00 AM	9:30 AM	same day
12:00 PM	12:30 PM	same day
3:00 PM	3:30 PM	same day
5:00 PM	5:30 PM	same day
6:00 PM	6:30 PM	same day
9:00 PM	9:30 PM	same day

Why people convert Karachi to Colombo time

Scheduling a call from Karachi to Colombo: a 10:00 AM start in Karachi lands at 10:30 AM in Colombo, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Karachi and Colombo are inside the 9-to-5 working day between 9:00 AM and 4:30 PM PKT time (9:30 AM–5:00 PM IST). That is roughly 7 hours 30 minutes of usable overlap.
Coordinating a Karachi-based team with Colombo 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 PKT" is unambiguous; "3 PM" across a +0h 30m gap is not.
Block 9:00 AM–4:30 PM PKT as the recurring meeting window if you work primarily from Karachi and need Colombo 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 IST (India Standard Time)

India Standard Time (IST) is the time observed throughout India and Sri Lanka. It is based on the 82.5°E meridian, passing through Mirzapur in Uttar Pradesh. India uses a single time zone despite spanning roughly 30° of longitude, which has been debated. IST does not observe daylight saving time. India is the world's most populous country, making IST one of the most-used time zones globally. The IT outsourcing industry and call centers operate primarily on IST, making the EST-to-IST conversion one of the most searched timezone conversions.

Best time to call between Karachi and Colombo

Both Karachi and Colombo sit inside the 9 AM – 5 PM working day between 9:00 AM–4:30 PM PKT, which is 9:30 AM–5:00 PM IST. That gives roughly 7 hours and 30 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

Karachi and Colombo share 7 hours of working-hours overlap (9:00 AM–4:30 PM PKT), so scheduling a live meeting is straightforward.

Karachi is 30 minutes ahead of Colombo (PKT UTC+05:00 → IST UTC+05:30). The shared working window is 9:00 AM–4:30 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 Colombo?

Karachi (PKT, UTC+05:00) is 30 minutes ahead of Colombo (IST, UTC+05:30). The gap is currently +0h 30m.

How do I convert Karachi time to Colombo time?

Add +0h 30m to Karachi local time. For example, 9:00 AM in Karachi is 9:30 AM in Colombo.

What time is it in Colombo right now?

Colombo uses IST at UTC+05:30. Use the live converter at the top of this page — it updates in real time and already accounts for the +0h 30m offset from Karachi.

What is the best time to call Colombo from Karachi?

Call between 9:00 AM and 4:30 PM PKT — that maps to 9:30 AM–5:00 PM IST and keeps both parties inside the working day.

Which is ahead, Karachi or Colombo?

Karachi is 30 minutes ahead of Colombo. When it is 12:00 PM in Karachi it is 12:30 PM in Colombo.

Do Karachi and Colombo use different time zones?

Karachi (Pakistan) uses PKT at UTC+05:00, while Colombo (Sri Lanka) uses IST at UTC+05:30. The IANA identifiers are Asia/Karachi and Asia/Colombo.

Does daylight saving time affect the Karachi–Colombo difference?

Neither zone observes daylight saving time, so the +0h 30m offset between Karachi and Colombo 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 Colombo?

Not normally. The +0h 30m gap only pushes the date over for late-evening times.

What is the time difference between Karachi and Colombo?

Colombo is +0h 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 Colombo in?

Colombo operates on Sri Lanka Time (SLST), UTC+5:30. Sharing India's timezone, Colombo is a key South Asian trade and tourism hub.

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 Colombo?

Standard business hours in Colombo are 9:00 AM - 5:00 PM IST.

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

The best overlap for a call is when both cities are in business hours. Karachi works 9:00 AM - 5:00 PM PKT and Colombo works 9:00 AM - 5:00 PM IST (+0h 30m difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Karachi and Colombo?

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

How do Karachi and Colombo compare in size?

Karachi has a population of approximately 14.9 million (metro: 16.5 million), while Colombo has approximately 752,000 (metro: 5.6 million).

What are the major landmarks in Karachi and Colombo?

Karachi is known for Quaid-e-Azam's Mausoleum, Mohatta Palace, Clifton Beach. Colombo is famous for Galle Face Green, Gangaramaya Temple, Colombo Lotus Tower.

Do Karachi and Colombo have stock exchanges?

Yes. Karachi has the PSX (Pakistan Stock Exchange) and Colombo has the CSE (Colombo Stock Exchange). The +0h 30m time difference affects trading hour overlaps between these exchanges.