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PDT/PST

Pacific Daylight Time

UTC−7

12am

3am

6am

9am

12pm

3pm

6pm

9pm

Pacific Time is on daylight saving time: PDT (UTC−7) until Sun, Nov 1.

Use PST all year (UTC−8)

CLST/CLT

Chile Summer Time

UTC−3

4h ahead

12am

3am

6am

9am

12pm

3pm

6pm

9pm

CLT is not used on this date.

This converter uses CLST (UTC−3), as in Santiago.

Keep CLT (UTC−4)

Quick answers

Selected conversion

5:00 am05:00 PDT (UTC-7), Oct 15, 2026 = 9:00 am09:00 CLST (UTC-3), Oct 15, 2026

PDT is 4 hours behind CLST.

PST (US winter time, UTC-8) and CLT examples

These examples always use PST (UTC-8) and CLT (UTC-4). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

PST is 4 hours behind CLT.

PST is US Pacific winter time (early November to mid-March). The rest of the year Los Angeles uses PDT (UTC-7), one hour later. For Pacific Time that follows daylight saving time, use PT to CLT. For daylight-time examples, use PDT to CLT.

How the time difference changes

Depending on seasonal clock changes, PDT is 3 hours behind CLT, PDT is 4 hours behind CLST, or PST is 5 hours behind CLST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in PDT correspond to 12:00 pm to 9:00 pm in CLT, working hours of 9:00 am to 6:00 pm in PDT correspond to 1:00 pm to 10:00 pm in CLST, or working hours of 9:00 am to 6:00 pm in PST correspond to 2:00 pm to 11:00 pm in CLST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in PDT correspond to 12:00 to 21:00 in CLT, working hours of 09:00 to 18:00 in PDT correspond to 13:00 to 22:00 in CLST, or working hours of 09:00 to 18:00 in PST correspond to 14:00 to 23:00 in CLST.

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

Time Difference

Pacific Daylight Time is 4 hours behind Chile Summer Time.
5:00 am05:00 in PDT is 9:00 am09:00 in CLST

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

5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
9:00 am09:00 Chile Summer Time (CLST). Offset UTC -3:00 hours

5:00 am05:00 PDT / 9:00 am09:00 CLST

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
PDT	CLST
	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
	8:00pm
	9:00pm
	10:00pm
	11:00pm
	12:00am next day
	1:00am next day
	2:00am next day
	3:00am next day
	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
	20:00
	21:00
	22:00
	23:00
	00:00 next day
	01:00 next day
	02:00 next day
	03:00 next day

Pacific Standard Time

Offset: PST is 8 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the PST 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

Map of the areas on Pacific Standard Time (PST) — PST part of the year
Today the shaded areas are on UTC−7 (PDT).
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 Pacific Daylight Time (PDT).

End: Pacific Standard Time (PST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

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

See upcoming clock changes worldwide.

PST 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 PST
U - short form of 'Uniform'

IANA/Olson: Reflects PST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems

America/Ensenada
America/Los_Angeles
America/Santa_Isabel
America/Tijuana
America/Vancouver
Canada/Pacific
Mexico/BajaNorte
PST8PDT
US/Pacific

PST Abbreviation: Several time zones share PST abbreviation and it could refer to these time zones

Pacific Standard Time - UTC -8
Pitcairn Standard Time - UTC -8

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

Chile Standard Time

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

Countries using this time zone: Chile

Principal Cities: The largest city in the CLT time zone is Santiago in Chile, with about 4.837 million people. Other major cities in this time zone include Antofagasta, Viña del Mar, Valparaíso, Puerto Montt.

Map of the areas on Chile Standard Time (CLT) — CLT part of the year
Today the shaded areas are on UTC−3.
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 Chile Summer Time (CLST).

End: Chile Standard Time (CLT) ended on Sunday, September 6, 2026 at 12:00 am00:00 local time and clocks were set one hour forward to Sunday, September 6, 2026, 1:00 am01:00 local daylight time instead. Standard time ends annually on the first Sunday of September.

Start: Chile Standard Time (CLT) starts on Sunday, April 4, 2027 at 12:00 am00:00 local time and clocks are set one hour back to Saturday, April 3, 2027, 11:00 pm23:00. Standard time starts annually on the first Sunday of April.