Time zone · Americas
FDNST
Fernando de Noronha Standard Time
Fernando de Noronha Standard Time (FDNST) is a unique timezone used exclusively by the remote archipelago of Fernando de Noronha, Brazil, which remains on UTC-02:00 year-round with no daylight saving adjustments.
Wednesday, October 14, 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 unique timezone used exclusively by the remote archipelago of Fernando de Noronha, Brazil, which remains on UTC-02:00 year-round with no daylight saving adjustments.
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.
Convert
FDNST to the world's clocks.
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].
- Why doesn’t Fernando de Noronha observe daylight saving time?
- Due to its proximity to the equator, Fernando de Noronha experiences minimal variation in daylight hours throughout the year, making daylight saving time unnecessary for energy conservation or lifestyle alignment.
- Is FDNST used anywhere else besides Fernando de Noronha?
- No—FDNST is unique to the Fernando de Noronha archipelago and is not observed by any other region or country.
- How does the constant UTC-02:00 offset affect daily life on the island?
- The stable offset simplifies planning for residents and visitors alike, with sunrise and sunset times remaining relatively consistent year-round, supporting a relaxed, nature-oriented lifestyle aligned with natural light.
- What’s the historical reason for adopting UTC-02:00?
- Fernando de Noronha has used UTC−02:00 as its standard time since 1914. It last used daylight saving (UTC−01:00) in the 2001–02 summer and has not changed its clocks since February 2002.
- Does the lack of DST make scheduling easier for international teams?
- Absolutely—without clock shifts, global collaborators can rely on a fixed time difference, reducing confusion and simplifying recurring meetings or project deadlines involving the island.
- How does FDNST compare to mainland Brazilian time zones?
- Fernando de Noronha is one hour ahead of Brasília Time (BRT, UTC−03:00), which covers most of Brazil, including the populous southeast.
- Are there any plans to change the timezone or adopt DST in the future?
- Fernando de Noronha has not changed its clocks since February 2002; any future change would need a decision by Brazil's government.
Source: IANA tzdb2026d · 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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