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).

Vienna to Karachi

+3h

Vienna

CESTSOURCE

Austria · UTC+02:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Karachi

PKT

Pakistan · UTC+05:00

HH03

MM00

15:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Vienna

Karachi

12:00 AM

3:00 AM

2:00 AM

5:00 AM

4:00 AM

7:00 AM

6:00 AM

9:00 AM

8:00 AM

11:00 AM

10:00 AM

1:00 PM

12:00 PM

3:00 PM

2:00 PM

5:00 PM

4:00 PM

7:00 PM

6:00 PM

9:00 PM

8:00 PM

11:00 PM

10:00 PM

1:00 AM+1

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

CEST and PKT on the World Map

The map below highlights the CEST (Central European Time) and PKT (Pakistan Standard Time) timezone regions across the globe.

CEST Zone

→

PKT Zone

Explore all world timezones interactively →

CET – Central European Time

UTC+01:00

Central European Time (CET) is used across most of Western and Central Europe, 1 hour ahead of UTC.

Countries in CET

GermanyFranceItalySpainNetherlandsBelgiumAustriaSwitzerlandPolandCzech RepublicSwedenNorwayDenmarkHungaryCroatiaSerbiaSlovakiaSloveniaBosnia and HerzegovinaNorth MacedoniaAlbaniaMontenegroLuxembourgMaltaTunisiaAlgeriaNigeria

Major Cities in CET

ParisBerlinRomeMadridAmsterdamBrusselsViennaWarsawZurichStockholmOsloCopenhagenPragueBudapestBarcelonaMunichMilanLagos

Key Facts about CET

•CET covers more European countries than any other time zone.
•Spain uses CET despite being geographically aligned with GMT/WET.
•The Frankfurt Stock Exchange, Euronext (Amsterdam/Paris), and Borsa Italiana operate on CET.
•Over 500 million people live in the CET time zone.
•France moved to CET during the German occupation in WWII and never switched back.

Daylight Saving:Yes – switches to CEST

Learn more about CET 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 Vienna

Wikipedia

Vienna operates on Central European Time (CET/CEST). As a major EU hub and headquarters for international organizations, Vienna coordinates Central European business.

Population:1.9 million

Metro:2.9 million

Business Hours:8:00 AM - 5:00 PM CET

Currency:EUR (€)

Stock Exchange:Wiener Börse

Key Landmarks

Schönbrunn PalaceSt. Stephen's CathedralBelvedere PalaceHofburgVienna State Opera

Did You Know?

Vienna has more than 50 theaters and opera houses.

Learn more about CEST 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 →

Vienna vs Karachi: Offsets, DST and Best Call Times

Vienna runs on Central European Summer Time (CEST) at UTC+02:00, currently observing daylight saving time. Karachi runs on Pakistan Standard Time (PKT) at UTC+05:00. That puts Vienna 3 hours ahead of Karachi — a difference of +3h at the current offsets.

In practice, when it is 9:00 AM in Vienna it is 12:00 PM in Karachi. Midnight in Vienna is 3:00 AM in Karachi.Vienna observes daylight saving time while Karachi does not, so the gap narrows or widens by an hour part of the year.

Vienna to Karachi time conversion table

Vienna (CEST)	Karachi (PKT)	Day
12:00 AM	3:00 AM	same day
6:00 AM	9:00 AM	same day
7:00 AM	10:00 AM	same day
8:00 AM	11:00 AM	same day
9:00 AM	12:00 PM	same day
12:00 PM	3:00 PM	same day
3:00 PM	6:00 PM	same day
5:00 PM	8:00 PM	same day
6:00 PM	9:00 PM	same day
9:00 PM	12:00 AM	next day

Why people convert Vienna to Karachi time

Scheduling a call from Vienna to Karachi: a 10:00 AM start in Vienna lands at 1:00 PM in Karachi, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Vienna and Karachi are inside the 9-to-5 working day between 9:00 AM and 2:00 PM CEST time (12:00 PM–5:00 PM PKT). That is roughly 5 hours of usable overlap.
Watching a live event or market open: Vienna viewers need 12:00 PM in Karachi to catch a 9:00 AM start there, and 9:00 PM if the event is anchored to Vienna.

Always state the zone abbreviation, not just the hour. "3:00 PM CEST" is unambiguous; "3 PM" across a +3h gap is not.
Block 9:00 AM–2:00 PM CEST as the recurring meeting window if you work primarily from Vienna and need Karachi colleagues present.
Vienna: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +3h gap.

About CET (Central European Time)

Central European Time (CET) is the standard time zone for most of Europe, covering over 30 countries from Spain to Poland, and from Norway to Italy. CET is 1 hour ahead of GMT and is used by the European Union's most populous nations. During summer, most CET countries switch to Central European Summer Time (CEST, UTC+02:00). Major European financial markets in Frankfurt, Paris, and Amsterdam operate on CET.

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 Vienna and Karachi

Both Vienna and Karachi sit inside the 9 AM – 5 PM working day between 9:00 AM–2:00 PM CEST, which is 12:00 PM–5:00 PM PKT. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Vienna and Karachi share 5 hours of working-hours overlap (9:00 AM–2:00 PM CEST), so scheduling a live meeting is straightforward.

Vienna is 3 hours ahead of Karachi (CEST UTC+02:00 → PKT UTC+05:00). The shared working window is 9:00 AM–2:00 PM CEST. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Vienna

☀ Currently in DST

Standard: UTC+01:00 · DST: UTC+02:00

Clocks fall back on Sun, Oct 25, 2026

Karachi

Does not observe DST

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 Vienna and Karachi?

Vienna (CEST, UTC+02:00) is 3 hours ahead of Karachi (PKT, UTC+05:00). The gap is currently +3h.

How do I convert Vienna time to Karachi time?

Add +3h to Vienna local time. For example, 9:00 AM in Vienna is 12:00 PM 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 +3h offset from Vienna.

What is the best time to call Karachi from Vienna?

Call between 9:00 AM and 2:00 PM CEST — that maps to 12:00 PM–5:00 PM PKT and keeps both parties inside the working day.

Which is ahead, Vienna or Karachi?

Vienna is 3 hours ahead of Karachi. When it is 12:00 PM in Vienna it is 3:00 PM in Karachi.

Do Vienna and Karachi use different time zones?

Vienna (Austria) uses CEST at UTC+02:00, while Karachi (Pakistan) uses PKT at UTC+05:00. The IANA identifiers are Europe/Vienna and Asia/Karachi.

Does daylight saving time affect the Vienna–Karachi difference?

Yes at the moment: Vienna is on daylight saving time and Karachi is not, so the +3h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share Vienna's time zone?

CEST also covers Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw and 10 more.

Which countries use CEST, Vienna's zone?

CEST is used in Germany, France, Italy, Spain, Netherlands, Belgium, Austria, Switzerland and 19 more.

Is there a day difference between Vienna and Karachi?

Not normally. The +3h gap only pushes the date over for late-evening times.

What is the time difference between Vienna and Karachi?

Karachi is +3h from Vienna.

What timezone is Vienna in?

Vienna operates on Central European Time (CET/CEST). As a major EU hub and headquarters for international organizations, Vienna coordinates Central European business.

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 Vienna?

Standard business hours in Vienna are 8:00 AM - 5:00 PM CET.

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 Vienna and Karachi?

The best overlap for a call is when both cities are in business hours. Vienna works 8:00 AM - 5:00 PM CET and Karachi works 9:00 AM - 5:00 PM PKT (+3h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Vienna and Karachi?

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

How do Vienna and Karachi compare in size?

Vienna has a population of approximately 1.9 million (metro: 2.9 million), while Karachi has approximately 14.9 million (metro: 16.5 million).

What are the major landmarks in Vienna and Karachi?

Vienna is known for Schönbrunn Palace, St. Stephen's Cathedral, Belvedere Palace. Karachi is famous for Quaid-e-Azam's Mausoleum, Mohatta Palace, Clifton Beach.

Do Vienna and Karachi have stock exchanges?

Yes. Vienna has the Wiener Börse and Karachi has the PSX (Pakistan Stock Exchange). The +3h time difference affects trading hour overlaps between these exchanges.