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 COT

-6h

CET

CETSOURCE

UTC+02:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

COT

UTC-05:00

HH06

MM00

06:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

CET

COT

12:00 AM

5:00 PM-1

2:00 AM

7:00 PM-1

4:00 AM

9:00 PM-1

6:00 AM

11:00 PM-1

8:00 AM

1:00 AM

10:00 AM

3:00 AM

12:00 PM

5:00 AM

2:00 PM

7:00 AM

4:00 PM

9:00 AM

6:00 PM

11:00 AM

8:00 PM

1:00 PM

10:00 PM

3:00 PM

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

CET and COT on the World Map

The map below highlights the CET (Central European Time) and COT (Colombia Time) timezone regions across the globe.

CET Zone

→

COT 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

COT – Colombia Time

UTC-05:00

Colombia Time (COT) is the standard time for Colombia, 5 hours behind UTC.

Countries in COT

Colombia

Major Cities in COT

BogotáMedellínCaliBarranquillaCartagena

Key Facts about COT

•Colombia does not observe daylight saving time.
•COT is the same offset as EST (UTC-05:00).
•Bogotá sits at 2,640m elevation, making it one of the highest capital cities.

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

Learn more about COT on Wikipedia

CET vs COT: Offsets, DST and Best Call Times

CET runs on Central European Time (CET) at UTC+01:00. COT runs on Colombia Time (COT) at UTC-05:00. That puts CET 6 hours behind COT — a difference of -6h at the current offsets.

In practice, when it is 9:00 AM in CET it is 3:00 AM in COT. Midnight in CET is 6:00 PM in COT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

CET to COT time conversion table

CET (CET)	COT (COT)	Day
12:00 AM	6:00 PM	previous day
6:00 AM	12:00 AM	same day
7:00 AM	1:00 AM	same day
8:00 AM	2:00 AM	same day
9:00 AM	3:00 AM	same day
12:00 PM	6:00 AM	same day
3:00 PM	9:00 AM	same day
5:00 PM	11:00 AM	same day
6:00 PM	12:00 PM	same day
9:00 PM	3:00 PM	same day

Why people convert CET to COT time

Scheduling a call from CET to COT: a 10:00 AM start in CET lands at 4:00 AM in COT, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both CET and COT are inside the 9-to-5 working day between 3:00 PM and 5:00 PM CET time (9:00 AM–11:00 AM COT). That is roughly 2 hours of usable overlap.
Booking travel or deliveries: tracking COT local time against CET keeps pickup windows and arrival estimates honest across the -6h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM CET" is unambiguous; "3 PM" across a -6h gap is not.
Block 3:00 PM–5:00 PM CET as the recurring meeting window if you work primarily from CET and need COT colleagues present.

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 COT (Colombia Time)

Colombia Time (COT) is used throughout Colombia. Colombia does not observe daylight saving time. COT shares the same offset as EST (UTC-05:00). Bogotá, the capital, is one of the largest cities in South America.

Best time to call between CET and COT

Both CET and COT sit inside the 9 AM – 5 PM working day between 3:00 PM–5:00 PM CET, which is 9:00 AM–11:00 AM COT. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

CET and COT overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.

CET is 6 hours behind COT (CET UTC+01:00 → COT UTC-05:00). The shared working window is 3:00 PM–5:00 PM CET. Remember to re-check around daylight-saving transitions.