GMT
Greenwich Mean Time
GMT +0
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

GMT is 6 hours and 30 minutes behind CCT. GMT uses GMT +0, and CCT uses GMT +6:30 for this comparison.

For example, 12:00 pm GMT is 6:30 pm CCT. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 9am-10:30am GMT, which is 3:30pm-5pm CCT.

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

Time Difference

Greenwich Mean Time is 6 hours and 30 minutes behind Cocos Islands Time
12:00 pm12:00 in GMT is 6:30 pm18:30 in CCT

GMT to CCT call time
Best time for a conference call or a meeting is between 9am-10:30am in GMT which corresponds to 3:30pm-5pm in CCT

12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
6:30 pm18:30 Cocos Islands Time (CCT). Offset UTC +6:30 hours

12:00 pm12:00 GMT / 6:30 pm18:30 CCT

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

Greenwich Mean Time

Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe

Countries using this time zone: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo

Principal Cities: The largest city in the GMT time zone is London in United Kingdom, with about 7.557 million people. Other major cities in this time zone include Abidjan, Dakar, Grand Dakar, Accra.

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.

GMT Time Zone Geo Map
GMT timezone map

GMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for GMT
  • Z - short form of 'Zulu'
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Abidjan
  • Africa/Accra
  • Africa/Bamako
  • Africa/Banjul
  • Africa/Bissau
  • Africa/Conakry
  • Africa/Dakar
  • Africa/Freetown
  • Africa/Lome
  • Africa/Monrovia
  • Africa/Nouakchott
  • Africa/Ouagadougou
  • Africa/Sao_Tome
  • Africa/Timbuktu
  • America/Danmarkshavn
  • Atlantic/Reykjavik
  • Atlantic/St_Helena
  • Eire
  • Etc/GMT
  • Etc/GMT+0
  • Etc/GMT-0
  • Etc/GMT0
  • Etc/Greenwich
  • Europe/Belfast
  • Europe/Dublin
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/London
  • GB
  • GB-Eire
  • GMT
  • GMT+0
  • GMT-0
  • GMT0
  • Greenwich
  • Iceland
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Universal Time Coordinated
  • WT - Western Sahara Standard Time
  • Z - Zulu 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.

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