CT to BST Converter
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9:30 am09:30 CT (UTC-6), Nov 1, 2026 = 3:30 pm15:30 GMT (UTC+0), Nov 1, 2026
CT is 6 hours behind GMT.
How the time difference changes
For most of the year, CT is 6 hours behind BST. From Nov 1, 2026 to Mar 14, 2027, CT is 6 hours behind GMT. From Mar 14 to Mar 28, 2027, and from Oct 31 to Nov 7, 2027, CT is 5 hours behind GMT.
For most of the year, working hours of 9:00 am to 6:00 pm in CT correspond to 3:00 pm to 12:00 am (next day) in BST. At other times of the year, working hours of 9:00 am to 6:00 pm in CT correspond to 3:00 pm to 12:00 am (next day) in GMT or working hours of 9:00 am to 6:00 pm in CT correspond to 2:00 pm to 11:00 pm in GMT.For most of the year, working hours of 09:00 to 18:00 in CT correspond to 15:00 to 00:00 (next day) in BST. At other times of the year, working hours of 09:00 to 18:00 in CT correspond to 15:00 to 00:00 (next day) in GMT or working hours of 09:00 to 18:00 in CT correspond to 14:00 to 23:00 in GMT.
Compare CT time with BST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Central Time is 6 hours behind Greenwich Mean Time.
9:30 am09:30 in CT is 3:30 pm15:30 in GMT
CT to GMT call time
Best time for a conference call or a meeting is between 9am-12pm09:00-12:00 in CT which corresponds to 3pm-6pm15:00-18:00 in GMT
9:30 am09:30 Central Time (CT). Offset UTC -6:00 hours
3:30 pm15:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
9:30 am09:30 CT / 3:30 pm15:30 GMT
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| CT | GMT |
|---|---|
| 5:00am | |
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| 05:00 | |
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| 05:00 next day |
Central Time
Central Time (CT) is a general term used to describe the areas that observe either the Central Standard Time (CST) or Central Daylight Time (CDT) in the United States and Canada. CT is not static but switches between CDT and CST.
Territories observing the time zone are primarily in North and Central America. It runs through several Mexican and U.S. states, as well as several Canadian provinces and Central American countries.
Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States
Principal Cities: The largest city in the CT time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
CT representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
- Sierra - Military abbreviation for CT
- S - short form of 'Sierra'
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
British Summer Time
Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Guernsey, Isle of Man, Jersey, United Kingdom
Principal Cities: The largest city in the BST time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Manchester, Sheffield.
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 the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.
Current time in the United Kingdom: UK time now
BST representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
