|

CLT to CDT Converter

Updating current time…
CLST/CLT
Chile Summer Time
GMT -3
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)
CDT
Central Daylight Time
GMT -5
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

9:00 am09:00 CLST (UTC-3), Oct 11, 2026 = 7:00 am07:00 CDT (UTC-5), Oct 11, 2026

CLST is 2 hours ahead of CDT.

CLT and CDT examples

These examples always use CLT (UTC-4) and CDT (UTC-5). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

CLT is 1 hour ahead of CDT.

How the time difference changes

Depending on seasonal clock changes, CLT is 1 hour ahead of CDT, CLST is 2 hours ahead of CDT, or CLST is 3 hours ahead of CST.

Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in CLT correspond to 8:00 am to 4:00 pm in CDT, working hours of 9:00 am to 5:00 pm in CLST correspond to 7:00 am to 3:00 pm in CDT, or working hours of 9:00 am to 5:00 pm in CLST correspond to 6:00 am to 2:00 pm in CST.Depending on seasonal clock changes, working hours of 09:00 to 17:00 in CLT correspond to 08:00 to 16:00 in CDT, working hours of 09:00 to 17:00 in CLST correspond to 07:00 to 15:00 in CDT, or working hours of 09:00 to 17:00 in CLST correspond to 06:00 to 14:00 in CST.

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

Time Difference

Chile Summer Time is 2 hours ahead of Central Daylight Time.
9:00 am09:00 in CLST is 7:00 am07:00 in CDT

CLST to CDT call time
Best time for a conference call or a meeting is between 11am-5pm11:00-17:00 in CLST which corresponds to 9am-3pm09:00-15:00 in CDT

9:00 am09:00 Chile Summer Time (CLST). Offset UTC -3:00 hours
7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours

9:00 am09:00 CLST / 7:00 am07:00 CDT

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

Chile Standard Time

Offset: CLT is 4 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 CLT 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.

CLT Time Zone Geo Map
CLT timezone map

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).

Daylight saving time clock moves forward for one hourEnd: 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.

Daylight saving time clock moves back for one hourStart: 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.

See upcoming clock changes worldwide.

CLT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for CLT
  • Q - short form of 'Quebec'
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • FKT - Falkland Island Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • PYT - Paraguay Time
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time

Central Daylight Time

Offset: CDT is 5 hours behind Greenwich Mean Time (GMT) and is used in North America

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

Principal Cities: The largest city in the CDT time zone is Chicago in the United States, with about 2.664 million people. Other major cities in this time zone include Houston, San Antonio, Ciudad Juarez, Dallas.

French: HAC - Heure Avancée du Centre

Spanish: CT - Zona Centro

CDT Time Zone Geo Map
CDT timezone map

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

Daylight saving time clock moves forward for one hourStart: Central Daylight Time (CDT) started 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. Daylight saving starts annually on the second Sunday of March.

Daylight saving time clock moves back for one hourEnd: Central Daylight Time (CDT) ends 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 local standard time instead. Daylight saving ends annually on the first Sunday of November.

See upcoming clock changes worldwide.

CDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for CDT
  • R - short form of 'Romeo'
IANA/Olson: Reflects CDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Chicago
  • America/Indiana/Knox
  • America/Indiana/Tell_City
  • America/Knox_IN
  • America/Matamoros
  • America/Menominee
  • America/North_Dakota/Beulah
  • America/North_Dakota/Center
  • America/North_Dakota/New_Salem
  • America/Ojinaga
  • America/Rainy_River
  • America/Rankin_Inlet
  • America/Resolute
  • America/Winnipeg
  • CST6CDT
  • Canada/Central
  • US/Central
  • US/Indiana-Starke
CDT Abbreviation: Several time zones share CDT abbreviation and it could refer to these time zones
  • Central Daylight Time - UTC -5
  • Cuba Daylight Time - UTC -4
Time zones with the GMT -5 offset:
  • CDT - Central Daylight Time
  • EST - Eastern Standard Time
  • ET - Eastern Time
  • COT - Colombia Time
  • CST - Cuba Standard Time
  • EASST - Easter Island Summer Time
  • ECT - Ecuador Time
  • PET - Peru Time
  • R - Romeo Time Zone
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT