CDT to CLT Converter

Updating current time…
CST/CDT
Central Standard Time
UTC−6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Central Time is on standard time: CST (UTC−6) until Sun, Mar 14, 2027.
Keep CDT (UTC−5)
CLST/CLT
Chile Summer Time
UTC−3
3h ahead
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)

Quick answers

Selected conversion

9:30 am09:30 CST (UTC-6), Nov 1, 2026 = 12:30 pm12:30 CLST (UTC-3), Nov 1, 2026

CST is 3 hours behind CLST.

CDT and CLT examples

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

CDT is 1 hour behind CLT.

How the time difference changes

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

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in CDT correspond to 10:00 am to 7:00 pm in CLT, working hours of 9:00 am to 6:00 pm in CDT correspond to 11:00 am to 8:00 pm in CLST, or working hours of 9:00 am to 6:00 pm in CST correspond to 12:00 pm to 9:00 pm in CLST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in CDT correspond to 10:00 to 19:00 in CLT, working hours of 09:00 to 18:00 in CDT correspond to 11:00 to 20:00 in CLST, or working hours of 09:00 to 18:00 in CST correspond to 12:00 to 21:00 in CLST.

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

Time Difference

Central Standard Time is 3 hours behind Chile Summer Time.
9:30 am09:30 in CST is 12:30 pm12:30 in CLST

CST to CLST call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in CST which corresponds to 12pm-6pm12:00-18:00 in CLST

9:30 am09:30 Central Standard Time (CST). Offset UTC -6:00 hours
12:30 pm12:30 Chile Summer Time (CLST). Offset UTC -3:00 hours

9:30 am09:30 CST / 12:30 pm12:30 CLST

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
CSTCLST
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Central Daylight Time

Offset: CDT is 5 hours behind Greenwich Mean Time (GMT).

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, Dallas, Fort Worth.

French: HAC - Heure Avancée du Centre

Spanish: CT - Zona Centro

Map of the areas on Central Daylight Time (CDT)
CDT part of the year

Today the shaded areas are on UTC−6 (Central Standard Time).

Open the world time zone map© OpenStreetMap

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

123456789101112End: Central Daylight Time (CDT) ended on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were 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.

123456789101112Start: Central Daylight Time (CDT) starts on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

See USA daylight saving time and 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

Chile Standard Time

Offset: CLT is 4 hours behind Greenwich Mean Time (GMT).

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 Antofagasta, Viña del Mar, Valparaíso, Puerto Montt.

Map of the areas on Chile Standard Time (CLT)
CLT part of the year

Today the shaded areas are on UTC−3.

Open the world time zone map© OpenStreetMap

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).

123456789101112End: 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.

123456789101112Start: 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.

See Chile daylight saving time and 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
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time