Time zone · Americas
FDNST
Fernando de Noronha Standard Time
Fernando de Noronha Standard Time (FDNST) is a single-zone region anchored by Brazil’s remote archipelago of the same name, where clocks sit at UTC‑02:00 year-round—no daylight saving shifts to worry about. That steady offset makes scheduling with the mainland or global teams refreshingly simple.
Sunday, May 31, 2026
Current offset
UTC-02:00
Standard · -02
Daylight saving
Not observed
Year-round standard time
IANA zones
1
None observe daylight saving
DST offset
—
No summer variant
About FDNST
A fixed, year-round offset.
Fernando de Noronha Standard Time (FDNST) is a single-zone region anchored by Brazil’s remote archipelago of the same name, where clocks sit at UTC‑02:00 year-round—no daylight saving shifts to worry about. That steady offset makes scheduling with the mainland or global teams refreshingly simple.
IANA zones · the technical identifiers
The zone that resolve to FDNST.
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.
Where FDNST is used
One country.
Same offset · UTC-02:00
Other zones at UTC-02:00 right now.
These named zones share FDNST's offset today. When daylight saving rules differ, they drift apart for part of the year.
Frequently asked questions
Common questions about FDNST, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- Is there daylight saving time in Fernando de Noronha Standard Time?
- No. FDNST has never observed daylight saving; the offset has been a constant UTC‑02:00 since modern records began, so you won’t encounter any clock changes.
- Which location defines this timezone?
- The only member zone is America/Noronha, covering the volcanic archipelago of Fernando de Noronha off Brazil’s northeast coast—a UNESCO-listed marine paradise whose ecological reserves operate on this timezone.
- How does FDNST compare to mainland Brazil’s time?
- Fernando de Noronha is permanently one hour ahead of Brasília Summer Time (BRT) and aligns with Brasília during Southern Hemisphere summer when the mainland springs forward, but differs by an hour when mainland clocks fall back.
- Do I ever need to adjust meeting times for FDNST?
- Never for daylight saving, but remember that local business hours may shift with island seasons—confirm event times directly with Noronha contacts to stay in sync.
- What’s unique about this timezone’s history?
- Brazil abolished daylight saving nationwide in 2019; FDNST has kept UTC‑02:00 since at least 2021, making it one of the most stable offsets in the country.
- Are there multiple zones in FDNST?
- No, FDNST is a singleton—only Noronha uses this offset; nearby mainland zones such as Recife or Natal follow different time rules.
- How does the fixed offset help global coordination?
- Because the clock never springs forward or falls back, you can set recurring cross-timezone calendars once and never update them for this region.
Free · Developer API
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