|

CLST to AMST Converter

Updating current time…
CLST
Chile Summer Time
GMT -3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AMT/AMST
Amazon Time
GMT -4
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AMST is not used on this date
This converter uses AMT (GMT -4), the offset Cuiaba uses on this date. Open the AMT converter.

Quick answers

For most of the year, CLST is 1 hour ahead of AMT. During seasonal clock changes, CLT and AMT have the same time.

For most of the year, working hours of 9:00 am to 5:00 pm in CLST correspond to 8:00 am to 4:00 pm in AMT. During seasonal clock changes, working hours of 9:00 am to 5:00 pm in CLT correspond to 9:00 am to 5:00 pm in AMT.

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

Time Difference

Chile Summer Time is 1 hour ahead of Amazon Time
9:00 am09:00 in CLST is 8:00 am08:00 in AMT

CLST to AMT call time
Best time for a conference call or a meeting is between 10am-5pm in CLST which corresponds to 9am-4pm in AMT

9:00 am09:00 Chile Summer Time (CLST). Offset UTC -3:00 hours
8:00 am08:00 Amazon Time (AMT). Offset UTC -4:00 hours

9:00 am09:00 CLST / 8:00 am08:00 AMT

CLSTAMT
12am (midnight)11pm
1am12am (midnight)
2am1am
3am2am
4am3am
5am4am
6am5am
7am6am
8am7am
9am8am
10am9am
11am10am
12pm (noon)11am
1pm12pm (noon)
2pm1pm
3pm2pm
4pm3pm
5pm4pm
6pm5pm
7pm6pm
8pm7pm
9pm8pm
10pm9pm
11pm10pm
00:0023:00
01:0000:00
02:0001:00
03:0002:00
04:0003:00
05:0004:00
06:0005:00
07:0006:00
08:0007:00
09:0008:00
10:0009:00
11:0010:00
12:0011:00
13:0012:00
14:0013:00
15:0014:00
16:0015:00
17:0016:00
18:0017:00
19:0018:00
20:0019:00
21:0020:00
22:0021:00
23:0022:00

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 hour from 12am to 1amStart: Chile Summer Time (CLST) started on Sunday, September 7, 2025 at 12:00 am local time and clocks were set one hour forward to Sunday, September 7, 2025, 1:00 am. Daylight saving starts annually on the first Sunday of September

Daylight saving time clock moves back for one hour from 12am to 11pmEnd: Chile Summer Time (CLST) ends on Sunday, April 5, 2026 at 12:00 am local time and clocks are set one hour back to Saturday, April 4, 2026, 11:00 pm local standard time instead. Daylight saving ends annually on the first Sunday of April

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

Amazon Summer Time

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

AMST Time Zone Geo Map
AMST timezone map

AMST 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 AMST
  • P - short form of 'Papa'
AMST Abbreviation: Several time zones share AMST abbreviation and it could refer to these time zones
  • Armenia Summer Time - UTC +5
  • Amazon Summer Time - UTC -3
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
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT