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CLST to BRST Converter

Updating current time…
CLST
Chile Summer Time
GMT -3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
BRT/BRST
Brasília time
GMT -3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
BRST is not used on this date.

This converter uses BRT (UTC−3), as in Sao Paulo.

Keep BRST (UTC−2)

Quick answers

Selected conversion

9:00 am09:00 CLST (UTC-3), Oct 6, 2026 = 9:00 am09:00 BRT (UTC-3), Oct 6, 2026

CLST and BRT have the same local time.

CLST and BRST examples

These examples always use CLST (UTC-3) and BRST (UTC-2). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

CLST is 1 hour behind BRST.

How the time difference changes

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

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 BRT. 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 BRT.For most of the year, working hours of 09:00 to 17:00 in CLST correspond to 09:00 to 17:00 in BRT. At other times of the year, working hours of 09:00 to 17:00 in CLT correspond to 10:00 to 18:00 in BRT.

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

Time Difference

Chile Summer Time and Brasília time have the same local time.
9:00 am09:00 in CLST is 9:00 am09:00 in BRT

CLST to BRT 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 BRT

9:00 am09:00 Chile Summer Time (CLST). Offset UTC -3:00 hours
9:00 am09:00 Brasília time (BRT). Offset UTC -3:00 hours

9:00 am09:00 CLST / 9:00 am09:00 BRT

CLSTBRT
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

Brasilia Summer Time

Offset: BRST is 2 hours behind Greenwich Mean Time (GMT) and is used in South America

BRST Time Zone Geo Map
BRST timezone map

BRST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -02 - basic short
  • -0200 - basic
  • -02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0200 - sign character (-) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Oscar - Military abbreviation for BRST
  • O - short form of 'Oscar'
Time zones with the GMT -2 offset:
  • PMDT - Pierre & Miquelon Daylight Time
  • WGT - West Greenland Time
  • BRST - Brasilia Summer Time
  • FNT - Fernando de Noronha Time
  • O - Oscar Time Zone
  • UYST - Uruguay Summer Time
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT