CDT Caribbean to BRT Converter
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Quick answers
Selected conversion
8:00 am08:00 CDT (UTC-4), Oct 13, 2026 = 9:00 am09:00 BRT (UTC-3), Oct 13, 2026
CDT is 1 hour behind BRT.
CDT and BRT examples
These examples always use CDT (UTC-4) and BRT (UTC-3). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
CDT is 1 hour behind BRT.
How the time difference changes
For most of the year, CDT Caribbean is 1 hour behind BRT. From Nov 1, 2026 to Mar 14, 2027, CST Caribbean is 2 hours behind BRT.
For most of the year, working hours of 9:00 am to 5:00 pm in CDT Caribbean correspond to 10:00 am to 6:00 pm in BRT. At other times of the year, working hours of 9:00 am to 5:00 pm in CST Caribbean correspond to 11:00 am to 7:00 pm in BRT.For most of the year, working hours of 09:00 to 17:00 in CDT Caribbean correspond to 10:00 to 18:00 in BRT. At other times of the year, working hours of 09:00 to 17:00 in CST Caribbean correspond to 11:00 to 19:00 in BRT.
Compare CDT time with BRT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Cuba Daylight Time is 1 hour behind Brasília time.
8:00 am08:00 in CDT is 9:00 am09:00 in BRT
CDT to BRT call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in CDT which corresponds to 10am-5pm10:00-17:00 in BRT
8:00 am08:00 Cuba Daylight Time (CDT). Offset UTC -4:00 hours
9:00 am09:00 Brasília time (BRT). Offset UTC -3:00 hours
8:00 am08:00 CDT / 9:00 am09:00 BRT
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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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
Brasília time
Offset: BRT is 3 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Brazil
Principal Cities: The largest city in the BRT time zone is Fortaleza in Brazil, with about 2.4 million people. Other major cities in this time zone include São Luís, Natal, Teresina, João Pessoa.
Daylight Saving: Clocks in Brasília time (BRT) do not change for daylight saving time, so BRT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
BRT representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
- Papa - Military abbreviation for BRT
- P - short form of 'Papa'
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasília time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- SRT - Suriname Time
- UYT - Uruguay Time