IANA tz database · zone identifier

Asia/Pontianak

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

UTC+07:00Abbreviation WIBNo DST — never observed

Time in Asia/Pontianak☾ Night

05:58:29

Thursday, July 16, 2026

Offset

UTC+07:00

Abbreviation

WIB

DST

No DST

Current offset

UTC+07:00

same year-round

Abbreviation

WIB

used year-round

DST behaviour

Never

has never observed daylight saving

Country

🇮🇩 Indonesia

ISO 3166: ID · view country page →

Using this identifier

The string to put in your code.

Asia/Pontianak 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 WIB 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: 'Asia/Pontianak',

dateStyle: 'full', timeStyle: 'long'

}).format(new Date());

Offset & DST behaviour

One offset,
38 years.

Asia/Pontianak has kept UTC+07:00 year-round since 31 December 1987 — no daylight saving and no offset changes on record since. It is among the most stable identifiers in the database.

Every offset this zone has kept

Keeping this offset since

31 December 1987

Next transition

None scheduled

no DST rules exist for this zone

Safe to assume

Local = UTC + 7h, always

…but store the identifier anyway

Technical record

The database entry, in full.

source: IANA tz database

IdentifierAsia/Pontianak

ISO country codeID🇮🇩 Indonesia

Reference coordinates0.03°S, 109.33°Etz database reference point

Standard offsetUTC+07:00abbreviation WIB

Daylight offset—daylight saving has never been observed

Where it applies

One of Indonesia's 4 zones.

Looking for travel-friendly info? See Pontianak or Western Indonesia Time.

🇮🇩

Indonesia

275M people, 4 time zones — this identifier covers one of them.

Related identifiers

Nearby in the database.

Same zone group · Western Indonesia Time

other identifiers keeping WIB

Asia/JakartaIndonesia

Same offset · UTC+07:00

other zones keeping this offset right now

Asia/BangkokThailand · Indochina Time Asia/BarnaulRussia · Barnaul Time Asia/Ho_Chi_MinhVietnam · Indochina Time Asia/HovdMongolia · Hovd Standard Time Asia/KrasnoyarskRussia · Krasnoyarsk Standard Time Asia/NovokuznetskRussia · Krasnoyarsk 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 Asia/Pontianak?: Asia/Pontianak is UTC+07:00, year-round. The offset never changes because the zone does not observe daylight saving time.
Does Asia/Pontianak observe daylight saving time?: No. Asia/Pontianak has never observed DST — it has kept UTC+07:00 continuously since 31 December 1987.
Which country uses Asia/Pontianak?: Indonesia. It is one of 4 IANA zones covering the country.
Is Asia/Pontianak the same as WIB?: Asia/Pontianak is one of the IANA zones that keeps Western Indonesia Time (WIB). Use Asia/Pontianak in software — WIB 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=Asia/Pontianak

{

"iana": "Asia/Pontianak",

"utc_offset": "+07:00",

"abbreviation": "WIB",

"observes_dst": false,

"country": "ID"

}