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CDT
Central Daylight Time
GMT -5
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CCT
Cocos Islands Time
GMT +6:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

7:00 am07:00 CDT (UTC-5), Oct 9, 2026 = 6:30 pm18:30 CCT (UTC+6:30), Oct 9, 2026

CDT is 11 hours and 30 minutes behind CCT.

CDT and CCT examples

These examples always use CDT (UTC-5) and CCT (UTC+6:30). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

CDT is 11 hours and 30 minutes behind CCT.

How the time difference changes

For most of the year, CDT is 11 hours and 30 minutes behind CCT. At other times of the year, CST is 12 hours and 30 minutes behind CCT.

For most of the year, working hours of 9:00 am to 5:00 pm in CDT correspond to 8:30 pm to 4:30 am (next day) in CCT. At other times of the year, working hours of 9:00 am to 5:00 pm in CST correspond to 9:30 pm to 5:30 am (next day) in CCT.For most of the year, working hours of 09:00 to 17:00 in CDT correspond to 20:30 to 04:30 (next day) in CCT. At other times of the year, working hours of 09:00 to 17:00 in CST correspond to 21:30 to 05:30 (next day) in CCT.

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

Time Difference

Central Daylight Time is 11 hours and 30 minutes behind Cocos Islands Time.
7:00 am07:00 in CDT is 6:30 pm18:30 in CCT

CDT to CCT call time
Best time for a conference call or a meeting is between 7am-8am07:00-08:00 in CDT which corresponds to 6:30pm-7:30pm18:30-19:30 in CCT

7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
6:30 pm18:30 Cocos Islands Time (CCT). Offset UTC +6:30 hours

7:00 am07:00 CDT / 6:30 pm18:30 CCT

CDTCCT
12:00am11:30am
1:00am12:30pm
2:00am1:30pm
3:00am2:30pm
4:00am3:30pm
5:00am4:30pm
6:00am5:30pm
7:00am6:30pm
8:00am7:30pm
9:00am8:30pm
10:00am9:30pm
11:00am10:30pm
12:00pm11:30pm
1:00pm12:30am
2:00pm1:30am
3:00pm2:30am
4:00pm3:30am
5:00pm4:30am
6:00pm5:30am
7:00pm6:30am
8:00pm7:30am
9:00pm8:30am
10:00pm9:30am
11:00pm10:30am
00:0011:30
01:0012:30
02:0013:30
03:0014:30
04:0015:30
05:0016:30
06:0017:30
07:0018:30
08:0019:30
09:0020:30
10:0021:30
11:0022:30
12:0023:30
13:0000:30
14:0001:30
15:0002:30
16:0003:30
17:0004:30
18:0005:30
19:0006:30
20:0007:30
21:0008:30
22:0009:30
23:0010:30

Central Daylight Time

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

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the CDT time zone is Chicago in the United States, with about 2.664 million people. Other major cities in this time zone include Houston, San Antonio, Ciudad Juarez, Dallas.

French: HAC - Heure Avancée du Centre

Spanish: CT - Zona Centro

CDT Time Zone Geo Map
CDT timezone map

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

Daylight saving time clock moves forward for one hourStart: Central Daylight Time (CDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

Daylight saving time clock moves back for one hourEnd: Central Daylight Time (CDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 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
  • -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 CDT
  • R - short form of 'Romeo'
IANA/Olson: Reflects CDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Chicago
  • America/Indiana/Knox
  • America/Indiana/Tell_City
  • America/Knox_IN
  • America/Matamoros
  • America/Menominee
  • America/North_Dakota/Beulah
  • America/North_Dakota/Center
  • America/North_Dakota/New_Salem
  • America/Ojinaga
  • America/Rainy_River
  • America/Rankin_Inlet
  • America/Resolute
  • America/Winnipeg
  • CST6CDT
  • Canada/Central
  • US/Central
  • US/Indiana-Starke
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 -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

Cocos Islands Time

Offset: CCT is 6 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Indian Ocean

Countries using this time zone: Cocos (Keeling) Islands

Principal Cities: The largest city in the CCT time zone is West Island in Cocos Islands, with about 120 people.

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

CCT Time Zone Geo Map
CCT timezone map

CCT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0630 - basic
  • +06:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0630 - sign character (+) followed by a four digit time providing hours (06) and minutes (30) of the offset. Indicates an offset of six hours and thirty minutes to the east of the zero meridian.
Time zones with the GMT +6:30 offset:
  • CCT - Cocos Islands Time
  • MMT - Myanmar Time