IANA tz database · zone identifier

Europe/Lisbon

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

UTC+01:00Abbreviation WESTObserves daylight saving
Time in Europe/Lisbon☾ Night
23:58:31
Wednesday, July 15, 2026
Offset
UTC+01:00
Abbreviation
WEST
DST
Active

Current offset

UTC+01:00

standard UTC+00:00 · daylight UTC+01:00

Abbreviation

WEST

the daylight-saving form

DST behaviour

Observes

changes clocks twice a year

Country

🇵🇹 Portugal

ISO 3166: PT · view country page →

Using this identifier

The string to put in your code.

Europe/Lisbon 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 WEST or +01:00 — abbreviations are ambiguous and fixed offsets can't follow rule changes.

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

Offset & DST behaviour

Two offsets,
every year.

Europe/Lisbon alternates between WET (UTC+00:00) and WEST (UTC+01:00). Right now it is on WEST; clocks fall back on 25 October 2026.

The year at a glance

WET · UTC+00:00WEST · UTC+01:00WET · UTC+00:0029 Mar · +1h25 Oct · −1h Jan 2026 Dec

Technical record

The database entry, in full.

source: IANA tz database

IdentifierEurope/Lisbon
ISO country codePT🇵🇹 Portugal
Reference coordinates38.72°N, 9.13°Wtz database reference point
Standard offsetUTC+00:00abbreviation WET
Daylight offsetUTC+01:00abbreviation WEST

Where it applies

One of Portugal's 3 zones.

Looking for travel-friendly info? See Lisbon or Western European Standard Time.

🇵🇹
Portugal

10M people, 3 time zones — this identifier covers one of them.

Country page →
🇵🇹 Lisbon
23:58
23:58:31 · WEST
pop. 546KWET
🇵🇹 Porto
23:58
23:58:31 · WEST
pop. 232KWET

Related identifiers

Nearby in the database.

Same zone group · Western European Standard Time

other identifiers keeping WET

Same offset · UTC+01:00

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 Europe/Lisbon?
Europe/Lisbon is currently UTC+01:00 (WEST). It alternates between UTC+00:00 in winter and UTC+01:00 in summer.
Does Europe/Lisbon observe daylight saving time?
Yes. Clocks fall back at the next transition on 25 October 2026, as they do twice every year.
Which country uses Europe/Lisbon?
Portugal. It is one of 3 IANA zones covering the country.
Is Europe/Lisbon the same as WET?
Europe/Lisbon is one of the IANA zones that keeps Western European Standard Time (WET). Use Europe/Lisbon in software — WET 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=Europe/Lisbon
{
"iana": "Europe/Lisbon",
"utc_offset": "+01:00",
"abbreviation": "WEST",
"observes_dst": true,
"country": "PT"
}