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.

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).

UTC to COT

Q: What is UTC?

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

-5h

UTC

UTCSOURCE

UTC+00:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

COT

UTC-05:00

HH07

MM00

07:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

UTC

COT

12:00 AM

7:00 PM-1

2:00 AM

9:00 PM-1

4:00 AM

11:00 PM-1

6:00 AM

1:00 AM

8:00 AM

3:00 AM

10:00 AM

5:00 AM

12:00 PM

7:00 AM

2:00 PM

9:00 AM

4:00 PM

11:00 AM

6:00 PM

1:00 PM

8:00 PM

3:00 PM

10:00 PM

5:00 PM

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

UTC and COT on the World Map

The map below highlights the UTC (Coordinated Universal Time) and COT (Colombia Time) timezone regions across the globe.

UTC Zone

→

COT Zone

Explore all world timezones interactively →

UTC – Coordinated Universal Time

UTC+00:00

Coordinated Universal Time (UTC) is the world's primary time standard, used as the basis for civil time worldwide.

Countries in UTC

Used worldwide as referenceSame zone as: UK, Ireland, Iceland, Portugal, Ghana

Major Cities in UTC

LondonDublinReykjavikAccraLisbonDakar

Key Facts about UTC

•UTC is the basis for all civil time zones worldwide.
•The abbreviation 'UTC' is a compromise between English (CUT) and French (TUC).
•UTC is based on atomic clocks and is accurate to within a nanosecond per day.
•Servers and databases worldwide store timestamps in UTC to avoid timezone confusion.
•Leap seconds are occasionally added to UTC to keep it aligned with Earth's rotation.

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

Learn more about UTC 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

Understanding the -5h Gap: UTC vs COT

UTC runs on Coordinated Universal Time (UTC) at UTC+00:00. COT runs on Colombia Time (COT) at UTC-05:00. That puts UTC 5 hours behind COT — a difference of -5h at the current offsets.

In practice, when it is 9:00 AM in UTC it is 4:00 AM in COT. Midnight in UTC is 7:00 PM in COT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

UTC to COT time conversion table

UTC (UTC)	COT (COT)	Day
12:00 AM	7:00 PM	previous day
6:00 AM	1:00 AM	same day
7:00 AM	2:00 AM	same day
8:00 AM	3:00 AM	same day
9:00 AM	4:00 AM	same day
12:00 PM	7:00 AM	same day
3:00 PM	10:00 AM	same day
5:00 PM	12:00 PM	same day
6:00 PM	1:00 PM	same day
9:00 PM	4:00 PM	same day

Why people convert UTC to COT time

Scheduling a call from UTC to COT: a 10:00 AM start in UTC lands at 5:00 AM in COT, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both UTC and COT are inside the 9-to-5 working day between 2:00 PM and 5:00 PM UTC time (9:00 AM–12:00 PM COT). That is roughly 3 hours of usable overlap.
Booking travel or deliveries: tracking COT local time against UTC keeps pickup windows and arrival estimates honest across the -5h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM UTC" is unambiguous; "3 PM" across a -5h gap is not.
Block 2:00 PM–5:00 PM UTC as the recurring meeting window if you work primarily from UTC and need COT colleagues present.

About UTC (Coordinated Universal Time)

Coordinated Universal Time (UTC) is the primary time standard by which the world regulates clocks and time. It is effectively the successor to GMT and is based on International Atomic Time with leap seconds added to keep it synchronized with Earth's rotation. UTC is used in aviation, computing, navigation, weather forecasting, and the International Space Station. Most programming languages and databases store timestamps in UTC.

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 UTC and COT

Both UTC and COT sit inside the 9 AM – 5 PM working day between 2:00 PM–5:00 PM UTC, which is 9:00 AM–12:00 PM COT. That gives roughly 3 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

UTC and COT overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.

UTC is 5 hours behind COT (UTC UTC+00:00 → COT UTC-05:00). The shared working window is 2:00 PM–5:00 PM UTC. Remember to re-check around daylight-saving transitions.