Time zone · Americas
SST
Samoa Standard Time
Samoa Standard Time (SST) sits at UTC−11:00 and is used in American Samoa in the South Pacific and on Midway Atoll (U.S. Minor Outlying Islands) in the North Pacific. Neither observes daylight saving time, and it is one of the last inhabited time zones to start each new day.
Thursday, October 15, 2026
Current offset
UTC-11:00
Standard · SST
Daylight saving
Not observed
Year-round standard time
IANA zones
2
None observe daylight saving
DST offset
—
No summer variant
About SST
A fixed, year-round offset.
Samoa Standard Time (SST) sits at UTC−11:00 and is used in American Samoa in the South Pacific and on Midway Atoll (U.S. Minor Outlying Islands) in the North Pacific. Neither observes daylight saving time, and it is one of the last inhabited time zones to start each new day.
IANA zones · the technical identifiers
The 2 zones that resolve to SST.
For software, always store the IANA identifier — never the abbreviation alone. The database keeps these zones distinct because their rules can, and historically did, diverge.
Cities across SST
Local time, city by city.
1 city
Where SST is used
2 countries.
Same offset · UTC-11:00
Other zones at UTC-11:00 right now.
These named zones share SST's offset today. When daylight saving rules differ, they drift apart for part of the year.
Convert
SST to the world's clocks.
Frequently asked questions
Common questions about SST, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- Which places use Samoa Standard Time?
- Samoa Standard Time is used in the U.S. Minor Outlying Islands (Midway Atoll) and American Samoa.
- Is Samoa Standard Time the last timezone in the world?
- Samoa Standard Time is among the last inhabited time zones to see a new day. Only a few uninhabited UTC−12 zones are “later”.
- Why doesn’t Samoa Standard Time use daylight saving?
- American Samoa lies in the tropics, where day length changes little through the year, so there is little to gain from changing clocks.
- When did Samoa Standard Time get its current offset?
- American Samoa has used UTC−11:00 since 1911. Midway Atoll has kept it since September 1956, after a brief period of daylight saving time that summer.
- Are all SST zones in the same area of the Pacific?
- No. American Samoa is in the South Pacific, while Midway Atoll is in the North Pacific. Both lie just east of the International Date Line.
- Do Samoa and Samoa Standard Time refer to the same place?
- No. Samoa (the Independent State of Samoa) uses UTC+13:00 all year, while SST (UTC−11) applies to American Samoa and some U.S. islands.
- What’s unique about timekeeping at UTC−11?
- No place at UTC−11:00 observes daylight saving time, so its offset never changes. Besides American Samoa and Midway, Niue also uses UTC−11:00.
Source: IANA tzdb2026e · Reviewed
Free · Developer API
This time zone, as JSON.
Its defining offset, DST status and member counts, from one endpoint.
Also in the API: time zones by coordinates, conversions that flag daylight saving gaps, and abbreviations decoded.
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