Time zone · Africa
REUNIO
Réunion Time
Réunion Time is the single, stable clock shared by the French island of Réunion, sitting four hours ahead of UTC year-round. With no daylight saving shifts, +04 offers straightforward planning for residents and collaborators.
Thursday, October 15, 2026
Current offset
UTC+04:00
Standard · +04
Daylight saving
Not observed
Year-round standard time
IANA zones
1
None observe daylight saving
DST offset
—
No summer variant
About REUNIO
A fixed, year-round offset.
Réunion Time is the single, stable clock shared by the French island of Réunion, sitting four hours ahead of UTC year-round. With no daylight saving shifts, +04 offers straightforward planning for residents and collaborators.
IANA zones · the technical identifiers
The zone that resolve to REUNIO.
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 REUNIO
Local time, city by city.
1 city
Where REUNIO is used
One country.
Same offset · UTC+04:00
Other zones at UTC+04:00 right now.
These named zones share REUNIO's offset today. When daylight saving rules differ, they drift apart for part of the year.
Convert
REUNIO to the world's clocks.
Frequently asked questions
Common questions about REUNIO, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- Has Réunion ever observed daylight saving?
- No. Réunion has kept a fixed UTC+04:00 offset, with no daylight saving, since 1911.
- When was the current offset established?
- The +04:00 standard has been in effect since 1911, unchanged for over a century.
- Are there any plans to introduce DST?
- There are no current plans – the island relies on its permanent +04:00 time.
- Which countries use Réunion Time?
- Only the French overseas department of Réunion uses this time zone.
- What is the official abbreviation?
- The abbreviation is +04, reflecting the constant four-hour lead over UTC.
- How many zones share this region?
- Just one, covering all of Réunion.
- Why doesn’t the time ever change?
- Tropical island status and minimal seasonal variation make daylight saving unnecessary.
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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