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CubaCDT
UTC−4
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AST
UTC−4
same time
12am
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Quick answers

Selected conversion

8:00 am08:00 CDT (UTC-4), Nov 2, 2026 = 8:00 am08:00 AST (UTC-4), Nov 2, 2026

Santiago de Cuba and AST have the same local time.

How the time difference changes

In 2026, Santiago de Cuba is 1 hour behind ADT for most of the year. Until Mar 8, 2026, Santiago de Cuba is 1 hour behind AST. From Nov 1, 2026 to Mar 14, 2027, Santiago de Cuba and AST have the same time.

In 2026, working hours of 9:00 am to 6:00 pm in Santiago de Cuba correspond to 10:00 am to 7:00 pm in ADT for most of the year. At other times that year, working hours of 9:00 am to 6:00 pm in Santiago de Cuba correspond to 10:00 am to 7:00 pm in AST or working hours of 9:00 am to 6:00 pm in Santiago de Cuba correspond to 9:00 am to 6:00 pm in AST.In 2026, working hours of 09:00 to 18:00 in Santiago de Cuba correspond to 10:00 to 19:00 in ADT for most of the year. At other times that year, working hours of 09:00 to 18:00 in Santiago de Cuba correspond to 10:00 to 19:00 in AST or working hours of 09:00 to 18:00 in Santiago de Cuba correspond to 09:00 to 18:00 in AST.

Compare Santiago de Cuba time with AST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

CDT (Cuba Daylight Time) and Atlantic Standard Time have the same local time.
8:00 am08:00 in Santiago de Cuba, Cuba is 8:00 am08:00 in AST

Santiago de Cuba to AST call time
Best time for a conference call or a meeting is between 9am-6pm09:00-18:00 in Santiago de Cuba which corresponds to 9am-6pm09:00-18:00 in AST

8:00 am08:00 CDT (Cuba Daylight Time) (Santiago de Cuba, Cuba). Offset UTC -4:00 hours
8:00 am08:00 Atlantic Standard Time (AST). Offset UTC -4:00 hours

8:00 am08:00 Santiago de Cuba, Cuba / 8:00 am08:00 AST

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Hourly time comparison
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Santiago de Cuba Time Zone and Facts

Time Zone

Abbreviation / Offset
CDT – Cuba Daylight Time, UTC-4 (now, daylight saving time)
CST – Cuba Standard Time, UTC-5 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, November 7, 2027 at 1:00 amSunday, November 7, 2027 at 01:00: clocks go back 1 hour to 12:00 am00:00 (CST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.

Santiago de Cuba Facts

Country
Cuba
Alternative Names
Kubos Santjagas, SCU, Sant'jago-de-Kuba, Sant'jago-de-Kubae, Santiago, Santiago de Cuba, Santiago de Cúba, Santiago de Kubo, Santiago di Cuba, Santiago nte Kouva, Santijago de Kuba, Santjaga-deh-Kuba, Santjago de Kuba, santiagodekuba, santyaghw dy kwba, santyagw d kwba, sheng de ya ge-de gu ba, Σαντιάγο ντε Κούβα, Сантијаго де Куба, Сантьяго-де-Кубæ, Сантьяго-де-Куба, Сантяга-дэ-Куба, Сантяго де Куба, סנטיאגו דה קובה, سانتياغو دي كوبا, سانتیاگو د کوبا, სანტიაგო-დე-კუბა, サンティアーゴ・デ・クーバ, 圣地亚哥-德古巴, 산티아고데쿠바
Population
555,865
Currency
Peso (CUP)
Geographic Coordinates
20° 01' N Latitude / 75° 49' W Longitude
International Dialing Code
+53

Atlantic Standard Time

Offset: AST is 4 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Anguilla, Antigua and Barbuda, Aruba, Barbados, Bermuda, British Virgin Islands, Canada, Caribbean Netherlands, Curaçao, Dominica, Dominican Republic, Greenland, Grenada, Guadeloupe, Martinique, Montserrat, Puerto Rico, Saint Barthélemy, Saint Kitts and Nevis, Saint Lucia, Saint Martin, Saint Vincent and the Grenadines, Sint Maarten, Trinidad and Tobago, US Virgin Islands

Principal Cities: The largest city in the AST time zone is Santo Domingo in the Dominican Republic, with about 2.202 million people. Other major cities in this time zone include Santiago de los Caballeros, Halifax, San Juan, San Pedro de Macorís.

French: HNA - Heure Normale de l'Atlantique

Spanish: AST - Tiempo Estándar del Atlántico

Map of the areas on Atlantic Standard Time (AST)
AST all year AST part of the year

Today all shaded areas are on AST.

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Atlantic Daylight Time (ADT).

123456789101112Start: Atlantic Standard Time (AST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

123456789101112End: Atlantic Standard Time (AST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

See Canada daylight saving time and upcoming clock changes worldwide.

AST 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 AST
  • Q - short form of 'Quebec'
IANA/Olson: Reflects AST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Anguilla
  • America/Antigua
  • America/Aruba
  • America/Barbados
  • America/Blanc-Sablon
  • America/Curacao
  • America/Dominica
  • America/Glace_Bay
  • America/Goose_Bay
  • America/Grenada
  • America/Guadeloupe
  • America/Halifax
  • America/Kralendijk
  • America/Lower_Princes
  • America/Marigot
  • America/Martinique
  • America/Moncton
  • America/Montserrat
  • America/Port_of_Spain
  • America/Puerto_Rico
  • America/Santo_Domingo
  • America/St_Barthelemy
  • America/St_Kitts
  • America/St_Lucia
  • America/St_Thomas
  • America/St_Vincent
  • America/Thule
  • America/Tortola
  • America/Virgin
  • Atlantic/Bermuda
  • Canada/Atlantic
AST Abbreviation: Several time zones share AST abbreviation and it could refer to these time zones
  • Atlantic Standard Time - UTC -4
  • Arabia Standard Time - UTC +3
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