Time zone · Americas
SST
Samoa Standard Time
Samoa Standard Time (SST) sits at UTC−11:00 and covers parts of the South Pacific, including U.S. Minor Outlying Islands and American Samoa. With no daylight saving time and clocks unchanged since 1956, it’s the last timezone to welcome the new day—making it perfect for anyone who likes ending the world’s 24-hour cycle.
Friday, June 5, 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 covers parts of the South Pacific, including U.S. Minor Outlying Islands and American Samoa. With no daylight saving time and clocks unchanged since 1956, it’s the last timezone to welcome the new day—making it perfect for anyone who likes ending the world’s 24-hour cycle.
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 currently on SST
The same hour, city by city.
1 city · all UTC-11:00
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.
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?
- Because SST regions are close to the equator, day length doesn’t change much through the year, so clocks stay constant.
- When did Samoa Standard Time get its current offset?
- The UTC−11:00 offset used today has been in effect since September 1, 1956, with no changes since then.
- Are all SST zones in the same area of the Pacific?
- Yes, they are all located in the South Pacific Ocean, just west 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/+14, while SST (UTC−11) applies to American Samoa and some U.S. islands.
- What’s unique about timekeeping at UTC−11?
- UTC−11 is one of very few populated offsets that never shifts for DST, so the time difference to neighboring zones never changes.
Free · Developer API
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