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).

CET to Dublin

+0h

CET

CETSOURCE

UTC+02:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Dublin

IST

Ireland · UTC+01:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

CET

Dublin

12:00 AM

11:00 PM-1

2:00 AM

1:00 AM

4:00 AM

3:00 AM

6:00 AM

5:00 AM

8:00 AM

7:00 AM

10:00 AM

9:00 AM

12:00 PM

11:00 AM

2:00 PM

1:00 PM

4:00 PM

3:00 PM

6:00 PM

5:00 PM

8:00 PM

7:00 PM

10:00 PM

9:00 PM

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

CET and IST on the World Map

The map below highlights the CET (Central European Time) and IST (Greenwich Mean Time) timezone regions across the globe.

CET Zone

→

IST 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

GMT – Greenwich Mean Time

UTC+00:00

Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.

Countries in GMT

United KingdomIrelandIcelandPortugal (mainland)GhanaSenegalMaliMauritaniaGambiaGuineaSierra LeoneLiberiaIvory CoastBurkina FasoMorocco (historically)

Major Cities in GMT

LondonDublinLisbonAccraReykjavikEdinburghCasablancaDakarBamakoAbidjanConakryFreetownMonrovia

Key Facts about GMT

•GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
•The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
•GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
•Iceland uses GMT year-round and never observes daylight saving time.
•The UK switches from GMT to BST (British Summer Time) in late March each year.

Daylight Saving:Yes – switches to BST

Learn more about GMT on Wikipedia

Understanding the +0h Gap: CET vs Dublin

CET runs on Central European Time (CET) at UTC+01:00. Dublin runs on Irish Standard Time (IST) at UTC+01:00, also currently on daylight saving time. That puts CET no time difference Dublin — a difference of +0h at the current offsets.

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

CET to Dublin time conversion table

CET (CET)	Dublin (IST)	Day
12:00 AM	12:00 AM	same day
6:00 AM	6:00 AM	same day
7:00 AM	7:00 AM	same day
8:00 AM	8:00 AM	same day
9:00 AM	9:00 AM	same day
12:00 PM	12:00 PM	same day
3:00 PM	3:00 PM	same day
5:00 PM	5:00 PM	same day
6:00 PM	6:00 PM	same day
9:00 PM	9:00 PM	same day

Why people convert CET to Dublin time

Scheduling a call from CET to Dublin: a 10:00 AM start in CET lands at 10:00 AM in Dublin, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both CET and Dublin are inside the 9-to-5 working day between 9:00 AM and 5:00 PM CET time (9:00 AM–5:00 PM IST). That is roughly 8 hours of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in CET is 8:00 PM in Dublin makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM CET" is unambiguous; "3 PM" across a +0h gap is not.
Block 9:00 AM–5:00 PM CET as the recurring meeting window if you work primarily from CET and need Dublin colleagues present.
Dublin: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.

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 GMT (Greenwich Mean Time)

Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.

Best time to call between CET and Dublin

Both CET and Dublin sit inside the 9 AM – 5 PM working day between 9:00 AM–5:00 PM CET, which is 9:00 AM–5:00 PM IST. That gives roughly 8 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

CET and Dublin share 8 hours of working-hours overlap (9:00 AM–5:00 PM CET), so scheduling a live meeting is straightforward.

CET is no time difference Dublin (CET UTC+01:00 → IST UTC+01:00). The shared working window is 9:00 AM–5:00 PM CET. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

CET

☀ Currently in DST

Standard: UTC+01:00 · DST: UTC+02:00

Clocks fall back on Sun, Oct 25, 2026

Dublin

☀ Currently in DST

Standard: UTC+00:00 · DST: UTC+01:00

Clocks fall back on Sun, Oct 25, 2026

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 CET and Dublin?

CET (CET, UTC+01:00) is no time difference Dublin (IST, UTC+01:00). The gap is currently +0h.

How do I convert CET time to Dublin time?

Add +0h to CET local time. For example, 9:00 AM in CET is 9:00 AM in Dublin.

What time is it in Dublin right now?

Dublin uses IST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +0h offset from CET.

What is the best time to call Dublin from CET?

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

Which is ahead, CET or Dublin?

CET and Dublin are currently on the same clock.

Do CET and Dublin use different time zones?

CET uses CET at UTC+01:00, while Dublin (Ireland) uses IST at UTC+01:00. The IANA identifiers are Europe/Paris and Europe/Dublin.

Does daylight saving time affect the CET–Dublin difference?

Yes at the moment: Dublin is on daylight saving time and CET is not, so the +0h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share CET's time zone?

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

Which countries use CET, CET's zone?

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

What is the time difference between CET and Dublin?

Dublin is +0h from CET.

What timezone is CET in?

CET operates on its local timezone.

What timezone is Dublin in?

Dublin operates on its local timezone.

Which countries use CET (Central European Time)?

CET is used in Germany, France, Italy, Spain, Netherlands, Belgium, and 21 more countries.

Does CET observe daylight saving time?

Yes, CET switches to CEST during summer months.

What are some interesting facts about CET?

CET covers more European countries than any other time zone. Spain uses CET despite being geographically aligned with GMT/WET.

Which cities are in the GMT timezone?

Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.

What is the UTC offset for GMT?

Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.

What should I know about the GMT timezone?

GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.