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CDT
12am
3am
6am
9am
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6pm
9pm
BermudaADT
UTC−3
1h ahead
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3am
6am
9am
12pm
3pm
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9pm
Hamilton's clocks go back 1 hour on Sun, Nov 1 · ADT → AST

Quick answers

Selected conversion

8:00 am08:00 CDT (UTC-4), Oct 20, 2026 = 9:00 am09:00 ADT (UTC-3), Oct 20, 2026

CDT is 1 hour behind Hamilton.

How the time difference changes

For most of the year, CDT Caribbean is 1 hour behind Hamilton, Bermuda. From Nov 1, 2026 to Mar 14, 2027, CST Caribbean is 1 hour behind Hamilton, Bermuda. Briefly around clock changes, CDT Caribbean and Hamilton, Bermuda have the same time.

For most of the year, working hours of 9:00 am to 6:00 pm in CDT Caribbean correspond to 10:00 am to 7:00 pm in Hamilton, Bermuda. At other times of the year, working hours of 9:00 am to 6:00 pm in CST Caribbean correspond to 10:00 am to 7:00 pm in Hamilton, Bermuda.For most of the year, working hours of 09:00 to 18:00 in CDT Caribbean correspond to 10:00 to 19:00 in Hamilton, Bermuda. At other times of the year, working hours of 09:00 to 18:00 in CST Caribbean correspond to 10:00 to 19:00 in Hamilton, Bermuda.

Compare CDT time with Hamilton 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 ADT (Atlantic Daylight Time).
8:00 am08:00 in CDT is 9:00 am09:00 in Hamilton, Bermuda

CDT to Hamilton call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in CDT which corresponds to 10am-6pm10:00-18:00 in Hamilton

8:00 am08:00 Cuba Daylight Time (CDT). Offset UTC -4:00 hours
9:00 am09:00 ADT (Atlantic Daylight Time) (Hamilton, Bermuda). Offset UTC -3:00 hours

8:00 am08:00 CDT / 9:00 am09:00 Hamilton, Bermuda

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Hourly time comparison
CDTHamilton, Bermuda
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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.

Map of the areas on Cuba Daylight Time (CDT)
CDT part of the year

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).

123456789101112Start: 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.

123456789101112End: 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.

See Cuba daylight saving time and upcoming clock changes worldwide.

CDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for CDT
  • Q - short form of 'Quebec'
IANA/Olson: Reflects CDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Havana
  • Cuba
CDT Abbreviation: Several time zones share CDT abbreviation and it could refer to these time zones
  • Central Daylight Time - UTC -5
  • Cuba Daylight Time - UTC -4
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time

Hamilton Time Zone and Facts

Time Zone

Abbreviation / Offset
ADT – Atlantic Daylight Time, UTC-3 (now, daylight saving time)
AST – Atlantic Standard Time, UTC-4 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, November 1, 2026 at 2:00 amSunday, November 1, 2026 at 02:00: clocks go back 1 hour to 1:00 am01:00 (AST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (ADT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.

Hamilton Facts

Country
Bermuda
Alternative Names
BDA, Chamilton, Gamil'tan, Gamil'ton, Hamilton, Hamilton pa Bermuda, Hamilton på Bermuda, Hamiltonas, Hamiltono, Khamilton, Khamiltun, amiltan, ha mi er dun, haemilteon, hamiruton, hamyltwn, hemiltana, hmyltwn, Χάμιλτον, Гамильтон, Гамільтан, Гамільтон, Хамилтон, Хамилтън, המילטון, هاميلتون, همیلتون, ہیملٹن, हॅमिल्टन, ஆமில்டன், แฮมิลตัน, ჰამილტონი, ハミルトン, 哈密尔顿, 해밀턴
Population
902
Currency
Dollar (BMD)
Geographic Coordinates
32° 17' N Latitude / 64° 46' W Longitude