BST to CDT Caribbean Converter
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Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
1:00 pm13:00 BST (UTC+1), Oct 13, 2026 = 8:00 am08:00 CDT (UTC-4), Oct 13, 2026
BST is 5 hours ahead of CDT.
BST and CDT examples
These examples always use BST (UTC+1) and CDT (UTC-4). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
BST is 5 hours ahead of CDT.
How the time difference changes
For most of the year, BST is 5 hours ahead of CDT Caribbean. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 28, 2027, GMT is 4 hours ahead of CDT Caribbean. From Nov 1, 2026 to Mar 14, 2027, GMT is 5 hours ahead of CST Caribbean.
For most of the year, working hours of 9:00 am to 5:00 pm in BST correspond to 4:00 am to 12:00 pm in CDT Caribbean. At other times of the year, working hours of 9:00 am to 5:00 pm in GMT correspond to 4:00 am to 12:00 pm in CST Caribbean or working hours of 9:00 am to 5:00 pm in GMT correspond to 5:00 am to 1:00 pm in CDT Caribbean.For most of the year, working hours of 09:00 to 17:00 in BST correspond to 04:00 to 12:00 in CDT Caribbean. At other times of the year, working hours of 09:00 to 17:00 in GMT correspond to 04:00 to 12:00 in CST Caribbean or working hours of 09:00 to 17:00 in GMT correspond to 05:00 to 13:00 in CDT Caribbean.
Compare BST time with CDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
British Summer Time is 5 hours ahead of Cuba Daylight Time.
1:00 pm13:00 in BST is 8:00 am08:00 in CDT
BST to CDT call time
Best time for a conference call or a meeting is between 2pm-5pm14:00-17:00 in BST which corresponds to 9am-12pm09:00-12:00 in CDT
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
8:00 am08:00 Cuba Daylight Time (CDT). Offset UTC -4:00 hours
1:00 pm13:00 BST / 8:00 am08:00 CDT
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.
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British Summer Time
Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Britain (UK), Guernsey, Isle of Man, Jersey
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.
Today all shaded areas are on BST.
Daylight Saving: British Summer Time (BST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Greenwich Mean Time (GMT).
Start: British Summer Time (BST) started on Sunday, March 29, 2026 at 1:00 am01:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 2:00 am02:00. Daylight saving starts annually on the last Sunday of March.
End: British Summer Time (BST) ends on Sunday, October 25, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
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
Cuba Daylight Time
Offset: CDT is 4 hours behind Greenwich Mean Time (GMT).
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, Camagüey, Holguín, Guantánamo.
Today all shaded areas are on CDT.
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).
Start: 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.
End: 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.
CDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -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.
- Quebec - Military abbreviation for CDT
- Q - short form of 'Quebec'
- America/Havana
- Cuba
- Central Daylight Time - UTC -5
- Cuba Daylight Time - UTC -4
- 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