IANA tz database · zone identifier

America/Santiago

The IANA tz database identifier for Chile Standard Time in Chile. Store this string — not the abbreviation, not the offset — and your timestamps stay correct forever.

UTC-04:00Abbreviation -04Observes daylight saving

Time in America/Santiago☾ Night

18:59:56

Wednesday, July 15, 2026

Offset

UTC-04:00

Abbreviation

-04

DST

Observed

Current offset

UTC-04:00

standard UTC-04:00 · daylight UTC-03:00

Abbreviation

-04

tzdb uses numeric abbreviations here

DST behaviour

Observes

changes clocks twice a year

Country

🇨🇱 Chile

ISO 3166: CL · view country page →

Using this identifier

The string to put in your code.

America/Santiago is the identifier to use in code and config for this region. Every modern language, database, and OS resolves it through the same tz database, so the examples here behave identically everywhere.

Avoid storing -04 or -04:00 — abbreviations are ambiguous and fixed offsets can't follow rule changes.

// format a date in this zone

new Intl.DateTimeFormat('en-US', {

timeZone: 'America/Santiago',

dateStyle: 'full', timeStyle: 'long'

}).format(new Date());

Offset & DST behaviour

Two offsets,
every year.

America/Santiago alternates between -04 (UTC-04:00) and CLST (UTC-03:00). Right now it is on -04; clocks spring forward on 6 September 2026.

The year at a glance

Technical record

The database entry, in full.

source: IANA tz database

IdentifierAmerica/Santiago

ISO country codeCL🇨🇱 Chile

Reference coordinates33.45°S, 70.67°Wtz database reference point

Standard offsetUTC-04:00abbreviation -04

Daylight offsetUTC-03:00abbreviation CLST

Where it applies

One of Chile's 4 zones.

Looking for travel-friendly info? See Santiago or Chile Standard Time.

🇨🇱

Chile

19M people, 4 time zones — this identifier covers one of them.

Related identifiers

Nearby in the database.

Same offset · UTC-04:00

other zones keeping this offset right now

America/AnguillaAnguilla · Atlantic Standard Time America/AntiguaAntigua and Barbuda · Atlantic Standard Time America/ArubaAruba · Atlantic Standard Time America/BarbadosBarbados · Atlantic Standard Time America/Boa_VistaBrazil · Amazon Standard Time America/Campo_GrandeBrazil · Amazon Standard Time

Frequently asked questions

Answers specific to this identifier — generated from the database record. Can't find what you need? Email [email protected].

What UTC offset is America/Santiago?: America/Santiago is currently UTC-04:00 (-04). It alternates between UTC-04:00 in winter and UTC-03:00 in summer.
Does America/Santiago observe daylight saving time?: Yes. Clocks spring forward at the next transition on 6 September 2026, as they do twice every year.
Which country uses America/Santiago?: Chile. It is one of 4 IANA zones covering the country.
Is America/Santiago the same as CLT?: America/Santiago is one of the IANA zones that keeps Chile Standard Time (CLT). Use America/Santiago in software — CLT is a human-friendly label, not a valid identifier.

Free · Developer API

This zone, as JSON.

Everything on this page — offset, abbreviation, DST rules, coordinates — from one endpoint, always current with the latest tzdb release.

GET /v1/timezones Live

countries, cities, convert, DST transitions coming next.

Get your free API key →

// this identifier, resolved live

GET /v1/timezones?iana=America/Santiago

{

"iana": "America/Santiago",

"utc_offset": "-04:00",

"abbreviation": "-04",

"observes_dst": true,

"country": "CL"

}