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 daylight saving
Time in Pacific/Saipan☀ Daylight
09:03:30
Thursday, October 15, 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

None

one offset all year

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

+09:43:00UTC+10:00 · UNCHANGED 23 December 2000 NOW

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 · release 2026d

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—no daylight saving time
tzdb release2026ddata current as of this IANA release

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.

Country page →
🇲🇵 Saipan
09:03
09:03:30 · ChST
pop. 48KCHST

Related identifiers

Nearby in the database.

Same zone group · Chamorro Standard Time

other identifiers keeping CHST

Same offset · UTC+10:00

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 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 stays on UTC+10:00 all year, as it has 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.

Its live offset, abbreviation and DST status, 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/Pacific/Saipan
{
"data": {
"iana": "Pacific/Saipan",
"observes_dst": false,
"country": { "code": "MP", "name": "Northern Mariana Islands" },
"current": {
"utc_offset": "+10:00",
"abbreviation": "ChST",
…
},
…
}
}