World Timezones

COT to GMT Converter

Compare GMT to COT instead
Colombia Time11:35 pmThu, Jun 4
Colombia TimeCOT
South America · UTC-5
11:35 pmThu, Jun 4
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Greenwich Mean TimeBST
Europe · UTC+1
5:35 amFri, Jun 5
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a

Offset

The time difference between Colombia Time and Greenwich Mean Time is 6 hours.

6 hours

Colombia Time (COT) is behind Greenwich Mean Time (BST).

COT: UTC-5

BST: UTC+1

Greenwich Mean Time is currently observing daylight saving time; Colombia Time is not.

When to schedule

Business-hours overlap: 9 AM–11 AM in Colombia Time (3 PM–5 PM in Greenwich Mean Time).

Both teams are in working hours during this window on weekdays.

Suggested time: 10:00 AM Colombia Time (4:00 PM Greenwich Mean Time).

This window may shift by an hour during daylight saving time.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Colombia

  • New Year's DayThu, Jan 1
  • EpiphanyMon, Jan 12
  • Saint Joseph's DayMon, Mar 23
  • Maundy ThursdayThu, Apr 2
  • Good FridayFri, Apr 3
  • Labour DayFri, May 1
  • Ascension DayMon, May 18
  • Corpus ChristiMon, Jun 8
  • Sacred HeartMon, Jun 15
  • Saint Peter and Saint PaulMon, Jun 29
  • Declaration of IndependenceMon, Jul 20
  • Battle of BoyacáFri, Aug 7
  • Assumption of MaryMon, Aug 17
  • Columbus DayMon, Oct 12
  • All Saints’ DayMon, Nov 2
  • Independence of CartagenaMon, Nov 16
  • Immaculate ConceptionTue, Dec 8
  • Christmas DayFri, Dec 25

United Kingdom

  • Good FridayFri, Apr 3
  • Early May Bank HolidayMon, May 4
  • Spring Bank HolidayMon, May 25
  • Christmas DayFri, Dec 25
  • St. Stephen's DayMon, Dec 28

About these zones

Colombia Time is also known as COT. To call Colombia, dial +57.

Greenwich Mean Time is also known as GMT, or BST. To call United Kingdom, dial +44.

Greenwich Mean Time is approximately 5,300 miles northeast of Colombia Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

COTGMTDay
12:00 am6:00 amSame day
1:00 am7:00 amSame day
2:00 am8:00 amSame day
3:00 am9:00 amSame day
4:00 am10:00 amSame day
5:00 am11:00 amSame day
6:00 am12:00 pmSame day
7:00 am1:00 pmSame day
8:00 am2:00 pmSame day
9:00 am3:00 pmSame day
10:00 am4:00 pmSame day
11:00 am5:00 pmSame day
12:00 pm6:00 pmSame day
1:00 pm7:00 pmSame day
2:00 pm8:00 pmSame day
3:00 pm9:00 pmSame day
4:00 pm10:00 pmSame day
5:00 pm11:00 pmSame day
6:00 pm12:00 am+1 day
7:00 pm1:00 am+1 day
8:00 pm2:00 am+1 day
9:00 pm3:00 am+1 day
10:00 pm4:00 am+1 day
11:00 pm5:00 am+1 day

Daylight saving time

Greenwich Mean Time observes daylight saving time; Colombia Time does not. The offset between the two zones changes when Greenwich Mean Time transitions: on Sunday, October 25, 2026, clocks fall back from BST to GMT.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Colombia Time
Sunrise
5:44 AM
Sunset
6:07 PM
Day length
12h 23m
Greenwich Mean Time
Sunrise
4:47 AM
Sunset
9:13 PM
Day length
16h 25m

Cities in these zones

Cities in Colombia Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Colombia Time

  • BOG
  • CLO
  • EOH
  • MDE

Airports in Greenwich Mean Time

  • LCY
  • LGW
  • LHR
  • LTN
  • STN
  • BHX
  • EMA
  • GLA
  • PIK
  • LBA

Related conversions

Common conversions

What is 9:00 am COT in GMT?
9:00 am COT is 3:00 pm GMT.
What is 12:00 pm COT in GMT?
12:00 pm COT is 6:00 pm GMT.
What is 12:30 pm COT in GMT?
12:30 pm COT is 6:30 pm GMT.
What is 2:00 pm COT in GMT?
2:00 pm COT is 8:00 pm GMT.
What is 5:00 pm COT in GMT?
5:00 pm COT is 11:00 pm GMT.
What is 11:30 pm COT in GMT?
11:30 pm COT is 5:30 am GMT, the next day.