CST To GMT Converter - Savvy Time

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Reset to current time Add to Calendar Swap Order to GMT to CST Share Converter Toggle Theme Include Time Include Date CST Central Standard Time GMT -6 GMT Greenwich Mean Time GMT +0

Time Difference

Central Standard Time is 6 hours behind Greenwich Mean Time1:30 pm13:30 in CST is 7:30 pm19:30 in GMT

CST to GMT call timeBest time for a conference call or a meeting is between 8am-12pm in CST which corresponds to 2pm-6pm in GMT

1:30 pm13:30 Central Standard Time (CST). Offset UTC -6:00 hours 7:30 pm19:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours

1:30 pm13:30 CST / 7:30 pm19:30 GMT

CST	GMT
12am (midnight)	6am
1am	7am
2am	8am
3am	9am
4am	10am
5am	11am
6am	12pm (noon)
7am	1pm
8am	2pm
9am	3pm
10am	4pm
11am	5pm
12pm (noon)	6pm
1pm	7pm
2pm	8pm
3pm	9pm
4pm	10pm
5pm	11pm
6pm	12am (midnight)
7pm	1am
8pm	2am
9pm	3am
10pm	4am
11pm	5am
0:00	6:00
1:00	7:00
2:00	8:00
3:00	9:00
4:00	10:00
5:00	11:00
6:00	12:00
7:00	13:00
8:00	14:00
9:00	15:00
10:00	16:00
11:00	17:00
12:00	18:00
13:00	19:00
14:00	20:00
15:00	21:00
16:00	22:00
17:00	23:00
18:00	0:00
19:00	1:00
20:00	2:00
21:00	3:00
22:00	4:00
23:00	5:00

Central Standard Time

Offset: CST is 6 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries: It is used in following countries: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, United States

Principal Cities: The largest city in the CST timezone is Mexico City from Mexico with population about 12.294 million people. Other major cities in the area are Chicago, Houston, Iztapalapa, Ecatepec

French: HNC - Heure Normale du Centre

Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Central Daylight Time (CDT).

Start: Central Standard Time (CST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.

End: Central Standard Time (CST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead. Standard time starts annually the on second Sunday of March.

CST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data

• -06 - basic short
• -0600 - basic
• -06:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers

• -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates six hour and zero minutes time differences to the west of the zero meridian.

Military/NATO: Used by the U.S. military, Chinese military and others

• Sierra - Military abbreviation for CST
• S - short form of 'Sierra'

IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems

• America/Bahia_Banderas
• America/Belize
• America/Chicago
• America/Chihuahua
• America/Costa_Rica
• America/El_Salvador
• America/Guatemala
• America/Indiana/Knox
• America/Indiana/Tell_City
• America/Knox_IN
• America/Managua
• America/Matamoros
• America/Menominee
• America/Merida
• America/Mexico_City
• America/Monterrey
• America/North_Dakota/Beulah
• America/North_Dakota/Center
• America/North_Dakota/New_Salem
• America/Ojinaga
• America/Rainy_River
• America/Rankin_Inlet
• America/Regina
• America/Resolute
• America/Swift_Current
• America/Tegucigalpa
• America/Winnipeg
• CST6CDT
• Canada/Central
• Canada/Saskatchewan
• Mexico/General
• US/Central
• US/Indiana-Starke

CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones

• Central Standard Time - UTC -6
• China Standard Time - UTC +8
• Cuba Standard Time - UTC -5
• Colombia Standard Time - UTC -5

Time zones with the GMT -6 offset:

• CST - Central Standard Time
• CT - Central Time
• MDT - Mountain Daylight Time
• EAST - Easter Island Standard Time
• GALT - Galapagos Time
• S - Sierra Time Zone

Greenwich Mean Time

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

Countries: It is used in following countries: 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 timezone is London from United Kingdom with population about 7.557 million people. Other major cities in the area are 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 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 zero hour and zero minutes time differences of the zero meridian.

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

GMT Abbreviation: Several time zones share GMT abbreviation and it could refer to these time zones

• Greenwich Mean Time - UTC +0
• GMT+03:00 - UTC +3
• GMT+06:00 - UTC +6
• GMT - UTC +1
• GMT+12:00 - UTC +12
• GMT-02:00 - UTC -2

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

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