IANA tz database · zone identifier

Pacific/Saipan

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

UTC+10:00Abbreviation ChSTNo DST — never observed

Time in Pacific/Saipan☀ Daylight

08:58:37

Thursday, July 16, 2026

Offset

UTC+10:00

Abbreviation

ChST

DST

No DST

Current offset

UTC+10:00

same year-round

Abbreviation

ChST

used year-round

DST behaviour

Never

has never observed daylight saving

Country

🇲🇵 Northern Mariana Islands

ISO 3166: MP · view country page →

Using this identifier

The string to put in your code.

Pacific/Saipan 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 ChST or +10:00 — abbreviations are ambiguous and fixed offsets can't follow rule changes.

// format a date in this zone

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

timeZone: 'Pacific/Saipan',

dateStyle: 'full', timeStyle: 'long'

}).format(new Date());

Offset & DST behaviour

One offset,
25 years.

Pacific/Saipan has kept UTC+10:00 year-round since 23 December 2000 — 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

23 December 2000

Next transition

None scheduled

no DST rules exist for this zone

Safe to assume

Local = UTC + 10h, always

…but store the identifier anyway

Technical record

The database entry, in full.

source: IANA tz database

IdentifierPacific/Saipan

ISO country codeMP🇲🇵 Northern Mariana Islands

Reference coordinates15.20°N, 145.75°Etz database reference point

Standard offsetUTC+10:00abbreviation ChST

Daylight offset—daylight saving has never been observed

Where it applies

All of Northern Mariana Islands, one clock.

Looking for travel-friendly info? See Saipan or Chamorro Standard Time.

🇲🇵

Northern Mariana Islands

47K people, one time zone. The whole country resolves to Pacific/Saipan.

Related identifiers

Nearby in the database.

Same zone group · Chamorro Standard Time

other identifiers keeping CHST

Pacific/GuamGuam

Same offset · UTC+10:00

other zones keeping this offset right now

Asia/Ust-NeraRussia · Vladivostok Standard Time Asia/VladivostokRussia · Vladivostok Standard Time Australia/BrisbaneAustralia · Australian Eastern Standard Time Australia/HobartAustralia · Australian Eastern Standard Time Australia/LindemanAustralia · Australian Eastern Standard Time Australia/MelbourneAustralia · Australian Eastern 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 Pacific/Saipan?: Pacific/Saipan is UTC+10:00, year-round. The offset never changes because the zone does not observe daylight saving time.
Does Pacific/Saipan observe daylight saving time?: No. Pacific/Saipan has never observed DST — it has kept UTC+10:00 continuously since 23 December 2000.
Which country uses Pacific/Saipan?: Northern Mariana Islands. The identifier covers the whole country.
Is Pacific/Saipan the same as CHST?: Pacific/Saipan is one of the IANA zones that keeps Chamorro Standard Time (CHST). Use Pacific/Saipan in software — CHST 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=Pacific/Saipan

{

"iana": "Pacific/Saipan",

"utc_offset": "+10:00",

"abbreviation": "ChST",

"observes_dst": false,

"country": "MP"

}