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PT/PDT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CDT/CST
UTC−4
3h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CST is not used on this date.

This converter uses CDT (UTC−4), as in Havana.

Quick answers

Selected conversion

5:00 am05:00 PDT (UTC-7), Oct 18, 2026 = 8:00 am08:00 CDT (UTC-4), Oct 18, 2026

PDT is 3 hours behind CDT.

How the time difference changes

For most of the year, PT is 3 hours behind CDT Caribbean. From Nov 1, 2026 to Mar 14, 2027, PT is 3 hours behind CST Caribbean. Briefly around clock changes, PT is 4 hours behind CDT Caribbean or PT is 2 hours behind CST Caribbean.

For most of the year, working hours of 9:00 am to 6:00 pm in PT correspond to 12:00 pm to 9:00 pm in CDT Caribbean. At other times of the year, working hours of 9:00 am to 6:00 pm in PT correspond to 12:00 pm to 9:00 pm in CST Caribbean.For most of the year, working hours of 09:00 to 18:00 in PT correspond to 12:00 to 21:00 in CDT Caribbean. At other times of the year, working hours of 09:00 to 18:00 in PT correspond to 12:00 to 21:00 in CST Caribbean.

Compare PT time with CST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Pacific Daylight Time is 3 hours behind Cuba Daylight Time.
5:00 am05:00 in PDT is 8:00 am08:00 in CDT

PDT to CDT call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in PDT which corresponds to 12pm-6pm12:00-18:00 in CDT

5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
8:00 am08:00 Cuba Daylight Time (CDT). Offset UTC -4:00 hours

5:00 am05:00 PDT / 8:00 am08:00 CDT

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Hourly time comparison
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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

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -08 - basic short
  • -0800 - basic
  • -08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Uniform - Military abbreviation for PT
  • U - short form of 'Uniform'
Time zones with the GMT -8 offset:
  • AKDT - Alaska Daylight Time
  • PST - Pacific Standard Time
  • PT - Pacific Time
  • PST - Pitcairn Standard Time
  • U - Uniform Time Zone

Cuba Standard Time

Offset: CST is 5 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Cuba

Principal Cities: The largest city in the CST 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 Standard Time (CST)
CST part of the year

Today the shaded areas are on UTC−4 (Cuba Daylight Time).

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

123456789101112End: Cuba Standard Time (CST) ended 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 local daylight time instead. Standard time ends annually on the second Sunday of March.

123456789101112Start: Cuba Standard Time (CST) starts 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. Standard time starts annually on the first Sunday of November.

See Cuba daylight saving time and upcoming clock changes worldwide.

CST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for CST
  • R - short form of 'Romeo'
IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Havana
  • Cuba
CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones
  • Central Standard Time - UTC -6
  • China Standard Time - UTC +8
  • Cuba Standard Time - UTC -5
Time zones with the GMT -5 offset:
  • CDT - Central Daylight Time
  • EST - Eastern Standard Time
  • ET - Eastern Time
  • COT - Colombia Time
  • CST - Cuba Standard Time
  • EASST - Easter Island Summer Time
  • ECT - Ecuador Time
  • PET - Peru Time
  • R - Romeo Time Zone