Updating current time…
CLST
Chile Summer Time
GMT -3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Argentina
ART
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

9:00 am09:00 CLST (UTC-3), Oct 10, 2026 = 9:00 am09:00 ART (UTC-3), Oct 10, 2026

CLST and San Francisco have the same local time.

How the time difference changes

For most of the year, CLST and San Francisco, Argentina have the same time. At other times of the year, CLT is 1 hour behind San Francisco, Argentina.

For most of the year, working hours of 9:00 am to 5:00 pm in CLST correspond to 9:00 am to 5:00 pm in San Francisco, Argentina. At other times of the year, working hours of 9:00 am to 5:00 pm in CLT correspond to 10:00 am to 6:00 pm in San Francisco, Argentina.For most of the year, working hours of 09:00 to 17:00 in CLST correspond to 09:00 to 17:00 in San Francisco, Argentina. At other times of the year, working hours of 09:00 to 17:00 in CLT correspond to 10:00 to 18:00 in San Francisco, Argentina.

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

Time Difference

Chile Summer Time and ART (Argentina Time) have the same local time.
9:00 am09:00 in CLST is 9:00 am09:00 in San Francisco, Argentina

CLST to San Francisco call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in CLST which corresponds to 9am-5pm09:00-17:00 in San Francisco

9:00 am09:00 Chile Summer Time (CLST). Offset UTC -3:00 hours
9:00 am09:00 ART (Argentina Time) (San Francisco, Argentina). Offset UTC -3:00 hours

9:00 am09:00 CLST / 9:00 am09:00 San Francisco, Argentina

CLSTSan Francisco, Argentina
12:00am12:00am
1:00am1:00am
2:00am2:00am
3:00am3:00am
4:00am4:00am
5:00am5:00am
6:00am6:00am
7:00am7:00am
8:00am8:00am
9:00am9:00am
10:00am10:00am
11:00am11:00am
12:00pm12:00pm
1:00pm1:00pm
2:00pm2:00pm
3:00pm3:00pm
4:00pm4:00pm
5:00pm5:00pm
6:00pm6:00pm
7:00pm7:00pm
8:00pm8:00pm
9:00pm9:00pm
10:00pm10:00pm
11:00pm11:00pm
00:0000:00
01:0001:00
02:0002:00
03:0003:00
04:0004:00
05:0005:00
06:0006:00
07:0007:00
08:0008:00
09:0009:00
10:0010:00
11:0011:00
12:0012:00
13:0013:00
14:0014:00
15:0015:00
16:0016:00
17:0017:00
18:0018:00
19:0019:00
20:0020:00
21:0021:00
22:0022:00
23:0023:00

Chile Summer Time

Offset: CLST is 3 hours behind Greenwich Mean Time (GMT) and is used in South America

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 Puente Alto, Antofagasta, Vina del Mar, Valparaiso.

CLST Time Zone Geo Map
CLST timezone map

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).

Daylight saving time clock moves forward for one hourStart: 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. Daylight saving starts annually on the first Sunday of September.

Daylight saving time clock moves back for one hourEnd: 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. Daylight saving ends annually on the first Sunday of April.

See 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 - Brasília time
  • CLST - Chile Summer Time
  • FKST - Falkland Islands Summer Time
  • GFT - French Guiana Time
  • P - Papa Time Zone
  • PYST - Paraguay Summer Time
  • SRT - Suriname Time
  • UYT - Uruguay Time

San Francisco Information

Time Zone

Abbreviation / Name
ART - Argentina Time
UTC / GMT Offset
-3:00 hours during Argentina Time, currently in use.

San Francisco Facts

Country
Argentina
Alternative Names
San Francisco, San Fransiskas, san fransyskw, san fransyskw qrtbt, sheng fu lang xi si ke, sn prnsysqw, סן פרנסיסקו, سان فرانسيسكو، قرطبة, سان فرانسیسکو, 聖弗朗西斯科
Population
59,062
Currency
Peso (ARS)
Geographic Coordinates
31° 25' S Latitude / 62° 04' W Longitude
International Dialing Code
+54