Updating current time…

CDT/CST

Cuba Daylight Time

UTC−4

12am

3am

6am

9am

12pm

3pm

6pm

9pm

CST is not used on this date.

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

Keep CST (UTC−5)

PST/PDT

Pacific Standard Time

UTC−8

4h behind

12am

3am

6am

9am

12pm

3pm

6pm

9pm

Pacific Time is on standard time: PST (UTC−8) until Sun, Mar 14, 2027.

Keep PDT (UTC−7)

Quick answers

Selected conversion

12:30 pm12:30 CDT (UTC-4), Nov 1, 2026 = 8:30 am08:30 PST (UTC-8), Nov 1, 2026

CDT is 4 hours ahead of PST.

CST and PDT examples

These examples always use CST (UTC-5) and PDT (UTC-7). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

CST is 2 hours ahead of PDT.

How the time difference changes

In 2026, CDT Caribbean is 3 hours ahead of PDT for most of the year. Until Mar 8, 2026, CST Caribbean is 3 hours ahead of PST. From Nov 1, 2026 to Mar 14, 2027, CDT Caribbean is 4 hours ahead of PST.

In 2026, working hours of 9:00 am to 6:00 pm in CDT Caribbean correspond to 6:00 am to 3:00 pm in PDT for most of the year. At other times that year, working hours of 9:00 am to 6:00 pm in CST Caribbean correspond to 6:00 am to 3:00 pm in PST or working hours of 9:00 am to 6:00 pm in CDT Caribbean correspond to 5:00 am to 2:00 pm in PST.In 2026, working hours of 09:00 to 18:00 in CDT Caribbean correspond to 06:00 to 15:00 in PDT for most of the year. At other times that year, working hours of 09:00 to 18:00 in CST Caribbean correspond to 06:00 to 15:00 in PST or working hours of 09:00 to 18:00 in CDT Caribbean correspond to 05:00 to 14:00 in PST.

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

Time Difference

Cuba Daylight Time is 4 hours ahead of Pacific Standard Time.
12:30 pm12:30 in CDT is 8:30 am08:30 in PST

CDT to PST call time
Best time for a conference call or a meeting is between 1pm-6pm13:00-18:00 in CDT which corresponds to 9am-2pm09:00-14:00 in PST

12:30 pm12:30 Cuba Daylight Time (CDT). Offset UTC -4:00 hours
8:30 am08:30 Pacific Standard Time (PST). Offset UTC -8:00 hours

12:30 pm12:30 CDT / 8:30 am08:30 PST

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.

Hourly time comparison
CDT	PST
	9:00pm previous day PDT UTC-7
	10:00pm previous day PDT UTC-7
	11:00pm previous day PDT UTC-7
	12:00am PDT UTC-7
	1:00am PDT UTC-7
	1:00am
	2:00am
	3:00am
	4:00am
	5:00am
	6:00am
	7:00am
	8:00am
	9:00am
	10:00am
	11:00am
	12:00pm
	1:00pm
	2:00pm
	3:00pm
	4:00pm
	5:00pm
	6:00pm
	7:00pm
	21:00 previous day PDT UTC-7
	22:00 previous day PDT UTC-7
	23:00 previous day PDT UTC-7
	00:00 PDT UTC-7
	01:00 PDT UTC-7
	01:00
	02:00
	03:00
	04:00
	05:00
	06:00
	07:00
	08:00
	09:00
	10:00
	11:00
	12:00
	13:00
	14:00
	15:00
	16:00
	17:00
	18:00
	19:00

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).
Open the world time zone map © OpenStreetMap

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).

End: 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.

Start: Cuba Standard Time (CST) starts on Sunday, November 7, 2027 at 1:00 am01:00 local time and clocks are set one hour back to Sunday, November 7, 2027, 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

Pacific Daylight Time

Offset: PDT is 7 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Mexico, United States

Principal Cities: The largest city in the PDT 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: HAP - Heure Avancée du Pacifique

Spanish: PT - Zona Noroeste

Map of the areas on Pacific Daylight Time (PDT) — PDT part of the year
Today the shaded areas are on UTC−8 (Pacific Standard Time).
Open the world time zone map © OpenStreetMap

Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Pacific Standard Time (PST).

End: Pacific Daylight Time (PDT) ended 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 local standard time instead. Daylight saving ends annually on the first Sunday of November.

Start: Pacific Daylight Time (PDT) starts 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. Daylight saving starts annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

PDT representations, usage and related time zones