Time Zones of Chile
|Basic time zone concepts|
The Ministry of Energy has announced that Chile will remain on summer time all year long, starting in 2015. It is summer now in Chile (2015-01-28), so that just means that the clocks won't "fall back" as usual in April.
For March 2008 only, because of a drought, Chile extended DST to last through the last Saturday in March. For March 2010 only, because of an earthquake, Chile extended DST through April 3 at 24:00.
|Area||Standard||DST||Duration of DST|
|Chile, except Easter Island||UTC-4||UTC-3||From the second Saturday in October at 24:00|
to the second Saturday in March at 24:00
|Easter Island||UTC-6||UTC-5||From the second Saturday in October at 22:00|
to the second Saturday in March at 22:00
Easter Island refers to Isla de Pascua province, which includes Isla de Pascua (Easter Island) and Isla Sala y Gómez. The other remote Pacific islands belonging to Chile, such as the Islas Juan Fernández, are in the same time zone as the mainland.
Source: This information was adapted from the tz database. Zone names come from that database. The names don't necessarily match any names used in the "real world".
Example: When it was 14:18 (or 2:18 p.m.) local time on 2000-09-03 (September 3, 2000) in Iquique, Chile, what was the UTC?
Iquique is on the Chilean mainland. From the first table, this is in the America/Santiago time zone. In the second table, look in the block of rows for America/Santiago. Among them, look for the first row on which the Final Date exceeds 2000-09-03 14:18. You find that the third line has a date of "Present", which is the first to exceed 2000. Looking across the row, the Chile rule applies, and standard time is UTC-4. Finally, look in the third table under the Chile rule. Once again, find the date range that includes the date in question (2000-09). That would be the last range, "1999-10 onward". This rule says that daylight saving time was in effect in Iquique until 03:00 UTC on March 12, 2000, and then standard time prevailed until 04:00 UTC on October 15, 2000. The date in question falls between those two dates, so standard time was in effect. Therefore, the local time was UTC-4. Add four hours to the given time to get UTC. The answer is 2000-09-03 18:18 UTC.
|Find the Zone Name for the given location.|
|Chile, except Easter Island||America/Santiago|
|Find the Rule and Standard Time for the given time and date.|
|Zone Name||Rule||Standard Time||Final Date|
|Apply the Rule, using the Standard Time for the given time and place.|
|Local||All||Local Mean Solar Time|
|Chile||Standard Time, with DST = Standard Time + 1:00 during the following periods:|
|1918-09 to 1919-07||from 1918-09-01 00:00 to 1919-07-02 00:00|
|1927-09 to 1932-04||from September 1 at 00:00 to April 1 (of the following year) at 00:00|
|1969-10 to 1998-03||from the Sunday following the second Saturday in October at 04:00 UTC to the Sunday following the second Saturday in March at 03:00 UTC|
|1998-09 to 1999-04||from 1998-09-27 04:00 UTC to 1999-04-04 03:00 UTC|
|1999-10 to 2007-03||from the Sunday following the second Saturday in October at 04:00 UTC to the Sunday following the second Saturday in March at 03:00 UTC|
|2007-10 to 2008-03||from 2007-10-14 04:00 UTC to 2008-03-30 03:00 UTC|
|2008-10 onward||from the Sunday following the second Saturday in October at 04:00 UTC to the Sunday following the second Saturday in March at 03:00 UTC|
The tz database contains names and abbreviations for the Chilean time zones. They were created by a contributor. Don't assume that these names, or anything like them, have ever been used officially in Chile.
The Servicio Hidrográfico y Oceanográfico de la Armada (Army Hydrographic and Oceanographic Service) has a time change history page showing every official time change since 1900. The text of past decrees governing these time changes is on this frequently asked questions page. Both are in Spanish.
|Back to main statoids page||Last updated: 2015-01-28|
|Copyright © 2001, 2003, 2006, 2008, 2010, 2015 by Gwillim Law.|