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CDT
Cuba Daylight Time
GMT -4
12am
3am
6am
9am
12pm
3pm
6pm
9pm
COT
Colombia Time
GMT -5
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

8:00 am08:00 CDT (UTC-4), Oct 7, 2026 = 7:00 am07:00 COT (UTC-5), Oct 7, 2026

CDT is 1 hour ahead of COT.

CDT and COT examples

These examples always use CDT (UTC-4) and COT (UTC-5). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

CDT is 1 hour ahead of COT.

How the time difference changes

For most of the year, CDT Caribbean is 1 hour ahead of COT. At other times of the year, CST Caribbean and COT have the same time.

For most of the year, working hours of 9:00 am to 5:00 pm in CDT Caribbean correspond to 8:00 am to 4:00 pm in COT. At other times of the year, working hours of 9:00 am to 5:00 pm in CST Caribbean correspond to 9:00 am to 5:00 pm in COT.For most of the year, working hours of 09:00 to 17:00 in CDT Caribbean correspond to 08:00 to 16:00 in COT. At other times of the year, working hours of 09:00 to 17:00 in CST Caribbean correspond to 09:00 to 17:00 in COT.

Compare CDT time with COT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Cuba Daylight Time is 1 hour ahead of Colombia Time.
8:00 am08:00 in CDT is 7:00 am07:00 in COT

CDT to COT call time
Best time for a conference call or a meeting is between 10am-5pm10:00-17:00 in CDT which corresponds to 9am-4pm09:00-16:00 in COT

8:00 am08:00 Cuba Daylight Time (CDT). Offset UTC -4:00 hours
7:00 am07:00 Colombia Time (COT). Offset UTC -5:00 hours

8:00 am08:00 CDT / 7:00 am07:00 COT

CDTCOT
12:00am11:00pm
1:00am12:00am
2:00am1:00am
3:00am2:00am
4:00am3:00am
5:00am4:00am
6:00am5:00am
7:00am6:00am
8:00am7:00am
9:00am8:00am
10:00am9:00am
11:00am10:00am
12:00pm11:00am
1:00pm12:00pm
2:00pm1:00pm
3:00pm2:00pm
4:00pm3:00pm
5:00pm4:00pm
6:00pm5:00pm
7:00pm6:00pm
8:00pm7:00pm
9:00pm8:00pm
10:00pm9:00pm
11:00pm10:00pm
00:0023:00
01:0000:00
02:0001:00
03:0002:00
04:0003:00
05:0004:00
06:0005:00
07:0006:00
08:0007:00
09:0008:00
10:0009:00
11:0010:00
12:0011:00
13:0012:00
14:0013:00
15:0014:00
16:0015:00
17:0016:00
18:0017:00
19:0018:00
20:0019:00
21:0020:00
22:0021:00
23:0022:00

Cuba Daylight Time

Offset: CDT is 4 hours behind Greenwich Mean Time (GMT) and is used in Caribbean

Countries using this time zone: Cuba

Principal Cities: The largest city in the CDT time zone is Havana in Cuba, with about 2.164 million people. Other major cities in this time zone include Santiago de Cuba, Camaguey, Holguin, Guantanamo.

Daylight Saving: Cuba Daylight Time (CDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Cuba Standard Time (CST).

Daylight saving time clock moves forward for one hourStart: Cuba Daylight Time (CDT) started on Sunday, March 8, 2026 at 12:00 am00:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 1:00 am01:00. Daylight saving starts annually on the second Sunday of March.

Daylight saving time clock moves back for one hourEnd: Cuba Daylight Time (CDT) ends on Sunday, November 1, 2026 at 1:00 am01:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 12:00 am00:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.

See upcoming clock changes worldwide.

CDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for CDT
  • Q - short form of 'Quebec'
IANA/Olson: Reflects CDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Havana
  • Cuba
CDT Abbreviation: Several time zones share CDT abbreviation and it could refer to these time zones
  • Central Daylight Time - UTC -5
  • Cuba Daylight Time - UTC -4
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • FKT - Falkland Island Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • PYT - Paraguay Time
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time

Colombia Time

Offset: COT is 5 hours behind Greenwich Mean Time (GMT) and is used in South America

Countries using this time zone: Colombia

Principal Cities: The largest city in the COT time zone is Bogota in Colombia, with about 7.674 million people. Other major cities in this time zone include Cali, Medellin, Barranquilla, Cartagena.

Daylight Saving: Clocks in Colombia Time (COT) do not change for daylight saving time, so COT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

COT Time Zone Geo Map
COT timezone map

COT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for COT
  • R - short form of 'Romeo'
Time zones with the GMT -5 offset:
  • CDT - Central Daylight Time
  • EST - Eastern Standard Time
  • ET - Eastern Time
  • COT - Colombia Time
  • CST - Cuba Standard Time
  • EASST - Easter Island Summer Time
  • ECT - Ecuador Time
  • PET - Peru Time
  • R - Romeo Time Zone