AST Caribbean to PT Converter
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Quick answers
Selected conversion
8:00 am08:00 AST (UTC-4), Nov 2, 2026 = 4:00 am04:00 PT (UTC-8), Nov 2, 2026
AST is 4 hours ahead of PT.
How the time difference changes
For most of the year, AST Caribbean is 3 hours ahead of PT. From Nov 1, 2026 to Mar 14, 2027, AST Caribbean is 4 hours ahead of PT.
For most of the year, working hours of 9:00 am to 6:00 pm in AST Caribbean correspond to 6:00 am to 3:00 pm in PT. At other times of the year, working hours of 9:00 am to 6:00 pm in AST Caribbean correspond to 5:00 am to 2:00 pm in PT.For most of the year, working hours of 09:00 to 18:00 in AST Caribbean correspond to 06:00 to 15:00 in PT. At other times of the year, working hours of 09:00 to 18:00 in AST Caribbean correspond to 05:00 to 14:00 in PT.
Compare AST time with PT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Atlantic Standard Time is 4 hours ahead of Pacific Time.
8:00 am08:00 in AST is 4:00 am04:00 in PT
AST to PT call time
Best time for a conference call or a meeting is between 1pm-6pm13:00-18:00 in AST which corresponds to 9am-2pm09:00-14:00 in PT
8:00 am08:00 Atlantic Standard Time (AST). Offset UTC -4:00 hours
4:00 am04:00 Pacific Time (PT). Offset UTC -8:00 hours
8:00 am08:00 AST / 4:00 am04:00 PT
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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.
Daylight Saving: Some places on Atlantic Standard Time (AST) keep the same time all year, while others use AST for only part of the year and change their clocks for daylight saving time; see upcoming clock changes worldwide.
AST 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 AST
- Q - short form of 'Quebec'
- 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
- Atlantic Standard Time - UTC -4
- Arabia Standard Time - UTC +3
- 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
Pacific Time
Pacific Time (PT) is a general term used to describe the areas that observe either the Pacific Standard Time (PST) or Pacific Daylight Time (PDT) in North America. PT also called Pacific Coast Time. PT is not static but switches between PDT and PST.
Territories observing the Pacific Time Zone are primarily in North America. It runs through the western United States and the Northwestern part of Mexico. From November 1, 2026, most of British Columbia in Canada keeps UTC-7 all year instead.
Countries using this time zone: Mexico, United States
Principal Cities: The largest city in the PT time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
PT representations, usage and related time zones
- -08 - basic short
- -0800 - basic
- -08:00 - extended
- -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the west of the zero meridian.
- Uniform - Military abbreviation for PT
- U - short form of 'Uniform'
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
