Chicago to CLT Time Converter

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Chicago
Illinois, USACST
UTC−6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
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

6:00 am06:00 CST (UTC-6), Nov 12, 2026 = 9:00 am09:00 CLST (UTC-3), Nov 12, 2026

Chicago is 3 hours behind CLST.

How the time difference changes

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

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

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

Time Difference

CST (Central Standard Time) is 3 hours behind Chile Summer Time.
6:00 am06:00 in Chicago, IL, USA is 9:00 am09:00 in CLST

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

6:00 am06:00 CST (Central Standard Time) (Chicago, IL, USA). Offset UTC -6:00 hours
9:00 am09:00 Chile Summer Time (CLST). Offset UTC -3:00 hours

6:00 am06:00 Chicago, IL, USA / 9:00 am09:00 CLST

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Hourly time comparison
Chicago, IL, USACLST
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Chicago Time Zone and Facts

Time Zone

Abbreviation / Offset
CST – Central Standard Time, UTC-6 (now)
CDT – Central Daylight Time, UTC-5 (daylight saving time)
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (CDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
123456789101112Sunday, November 7, 2027 at 2:00 amSunday, November 7, 2027 at 02:00: clocks go back 1 hour to 1:00 am01:00 (CST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.
Clock Changes
USA daylight saving time · Clock changes worldwide

Chicago Facts

Country
USA
State
Illinois
Alternative Names
CHI, Cekaga, Chi-ka-ko, Chi-kâ-kô, Chicago, Chicagu, Chikago, Chykaga, Cikaga, Cikago, Cikaqo, E-Chicago, Kikako, Shikago, Sicagum, Sikago, The Windy City, Tsikago, Windy City, chikhako, cikago, cikako, shikago, shkagw, shykaghw, shykagw, shykajw, shyqgw, sikago, sikkagea, syqgw, zhi jia ge, Çikago, Çikaqo, Ĉikago, Čikaga, Čikago, Čikāga, Čėkaga, Şikago, Σικάγο, Чикаго, Чикаґо, Чыкага, Չիկագո, שיקאגא, שיקגו, شيكاجو, شيكاغو, شکاگو, شیکاگو, شیکاگۆ, ܫܝܩܓܘ, शिकागो, শিকাগো, ਸ਼ਿਕਾਗੋ, சிகாகோ, చికాగో, ಶಿಕಾಗೊ, ഷിക്കാഗോ, ชิคาโก, ရှီကာဂိုမြို့, ჩიკაგო, ሺካጎ, ᓰᖄᑯ, Ṣìkágò, シカゴ, 芝加哥, 시카고, 𐍃𐌾𐌹𐌺𐌰𐌲𐍉
Population
2,664,452
Currency
Dollar (USD)
Geographic Coordinates
41° 51' N Latitude / 87° 39' W Longitude
International Dialing Code
+1
More About Chicago
Chicago time now

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