CLT
Chile Standard Time
GMT -4

Chile Standard Time

Offset: CLT is 4 hours behind Greenwich Mean Time (GMT) and is used in South America

CLT Time Zone Geo Map
CLT timezone map

Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Chile Summer Time (CLST).

Daylight saving time clock moves back for one hour from 12am to 11pmStart: Chile Standard Time (CLT) started on Sunday, April 5, 2026 at 12:00 am local time and clocks were set one hour back to Saturday, April 4, 2026, 11:00 pm. Standard time starts annually the on first Saturday of April.

Daylight saving time clock moves forward for one hour from 12am to 1amEnd: Chile Standard Time (CLT) ends on Sunday, September 6, 2026 at 12:00 am local time and clocks are set one hour forward to Sunday, September 6, 2026, 1:00 am local daylight time instead. Standard time starts annually the on first Sunday of September.

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 four hour and zero minutes time differences 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