IANA tz database · zone identifier

America/Los_Angeles

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

UTC-07:00Abbreviation PDTObserves daylight saving
Time in America/Los_Angeles☀ Daylight
16:00:51
Wednesday, October 14, 2026
Offset
UTC-07:00
Abbreviation
PDT
DST
Active

Current offset

UTC-07:00

standard UTC-08:00 · daylight UTC-07:00

Abbreviation

PDT

the daylight-saving form

DST behaviour

Observes

changes clocks twice a year

Country

🇺🇸 United States

ISO 3166: US · view country page →

Using this identifier

The string to put in your code.

America/Los_Angeles 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 PDT or -07:00 — abbreviations are ambiguous and fixed offsets can't follow rule changes.

// format a date in this zone
new Intl.DateTimeFormat('en-US', {
timeZone: 'America/Los_Angeles',
dateStyle: 'full', timeStyle: 'long'
}).format(new Date());

Offset & DST behaviour

Two offsets,
every year.

America/Los_Angeles alternates between PST (UTC-08:00) and PDT (UTC-07:00). Right now it is on PDT; clocks fall back on 1 November 2026.

The year at a glance

PST · UTC-08:00PDT · UTC-07:00PST · UTC-08:008 Mar · +1h1 Nov · −1h Jan 2026 Dec

Technical record

The database entry, in full.

source: IANA tz database · release 2026d

IdentifierAmerica/Los_Angeles
ISO country codeUS🇺🇸 United States
Reference coordinates34.05°N, 118.24°Wtz database reference point
Standard offsetUTC-08:00abbreviation PST
Daylight offsetUTC-07:00abbreviation PDT
tzdb release2026ddata current as of this IANA release

Where it applies

One of United States's 29 zones.

Looking for travel-friendly info? See Los Angeles or Pacific Standard Time.

🇺🇸
United States

340M people, 29 time zones — this identifier covers one of them.

Country page →
🇺🇸 Los Angeles
16:00
16:00:51 · PDT
pop. 3.9MPST
🇺🇸 San Diego
16:00
16:00:51 · PDT
pop. 1.4MPST
🇺🇸 San Jose
16:00
16:00:51 · PDT
pop. 1MPST

Related identifiers

Nearby in the database.

Same zone group · Pacific Standard Time

other identifiers keeping PST

Same offset · UTC-07:00

other zones keeping this offset right now

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/Los_Angeles?
America/Los_Angeles is currently UTC-07:00 (PDT). It alternates between UTC-08:00 in winter and UTC-07:00 in summer.
Does America/Los_Angeles observe daylight saving time?
Yes. Clocks fall back at the next transition on 1 November 2026, as they do twice every year.
Which country uses America/Los_Angeles?
United States. It is one of 29 IANA zones covering the country.
Is America/Los_Angeles the same as PST?
America/Los_Angeles is one of the IANA zones that keeps Pacific Standard Time (PST). Use America/Los_Angeles in software — PST is a human-friendly label, not a valid identifier.

Free · Developer API

This zone, as JSON.

Its live offset, abbreviation, DST status and next clock change, plus its coordinates and country, from one endpoint.

GET /v1/timezones Live

Also in the API: time zones by coordinates, conversions that flag daylight saving gaps, and abbreviations decoded.

Get your free API key → All endpoints Plans and pricing

Moving off WorldTimeAPI? Our drop-in replacement needs no key.

// this identifier, resolved live
GET /v1/timezones/America/Los_Angeles
{
"data": {
"iana": "America/Los_Angeles",
"observes_dst": true,
"country": { "code": "US", "name": "United States" },
"current": {
"utc_offset": "-07:00",
"abbreviation": "PDT",
…
},
…
}
}