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CLST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
PT/PDT
UTC−7
4h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

9:00 am09:00 CLST (UTC-3), Oct 18, 2026 = 5:00 am05:00 PDT (UTC-7), Oct 18, 2026

CLST is 4 hours ahead of PDT.

How the time difference changes

Depending on seasonal clock changes, CLT is 3 hours ahead of PT, CLST is 4 hours ahead of PT, or CLST is 5 hours ahead of PT.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in CLT correspond to 6:00 am to 3:00 pm in PT, working hours of 9:00 am to 6:00 pm in CLST correspond to 5:00 am to 2:00 pm in PT, or working hours of 9:00 am to 6:00 pm in CLST correspond to 4:00 am to 1:00 pm in PT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in CLT correspond to 06:00 to 15:00 in PT, working hours of 09:00 to 18:00 in CLST correspond to 05:00 to 14:00 in PT, or working hours of 09:00 to 18:00 in CLST correspond to 04:00 to 13:00 in PT.

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

Time Difference

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

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

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

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

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Chile Summer Time

Offset: CLST is 3 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Chile

Principal Cities: The largest city in the CLST 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 Summer Time (CLST)
CLST part of the year

Today all shaded areas are on CLST.

Daylight Saving: Chile Summer Time (CLST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Chile Standard Time (CLT).

123456789101112Start: Chile Summer Time (CLST) started 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.

123456789101112End: Chile Summer Time (CLST) ends 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 local standard time instead.

See Chile daylight saving time and upcoming clock changes worldwide.

CLST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -03 - basic short
  • -0300 - basic
  • -03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Papa - Military abbreviation for CLST
  • P - short form of 'Papa'
Time zones with the GMT -3 offset:
  • ADT - Atlantic Daylight Time
  • PMT - Pierre & Miquelon Standard Time
  • PMST - Pierre & Miquelon Standard Time
  • AMST - Amazon Summer Time
  • ART - Argentina Time
  • BRT - Brasilia Time
  • CLST - Chile Summer Time
  • FKST - Falkland Islands Summer Time
  • FKT - Falkland Islands Time
  • GFT - French Guiana Time
  • P - Papa Time Zone
  • PYST - Paraguay Summer Time
  • PYT - Paraguay Time
  • SRT - Suriname Time
  • UYT - Uruguay 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

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