Time zone · Africa
IOT
Indian Ocean Time
Indian Ocean Time (IOT) keeps things simple with a steady UTC+06:00 offset year-round—no daylight saving changes to worry about. It’s the quiet, consistent rhythm of the Chagos Archipelago, where time flows without surprises.
Sunday, May 31, 2026
Current offset
UTC+06:00
Standard · +06
Daylight saving
Not observed
Year-round standard time
IANA zones
1
None observe daylight saving
DST offset
—
No summer variant
About IOT
A fixed, year-round offset.
Indian Ocean Time (IOT) keeps things simple with a steady UTC+06:00 offset year-round—no daylight saving changes to worry about. It’s the quiet, consistent rhythm of the Chagos Archipelago, where time flows without surprises.
IANA zones · the technical identifiers
The zone that resolve to IOT.
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 IOT
The same hour, city by city.
1 city · all UTC+06:00
Where IOT is used
One country.
Same offset · UTC+06:00
Other zones at UTC+06:00 right now.
These named zones share IOT's offset today. When daylight saving rules differ, they drift apart for part of the year.
Frequently asked questions
Common questions about IOT, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- What is Indian Ocean Time (IOT)?
- IOT is the time zone used in the British Indian Ocean Territory, set at UTC+06:00 all year, with no daylight saving adjustments.
- Does IOT observe daylight saving time?
- No, IOT does not observe daylight saving time—its offset remains constant throughout the year.
- Which location uses IOT?
- The only location using IOT is the Chagos Archipelago in the British Indian Ocean Territory.
- Why doesn’t IOT change with the seasons?
- Because the region doesn’t implement daylight saving, so the time stays fixed at UTC+06:00 regardless of the time of year.
- Is IOT the same as other Indian Ocean time zones?
- No, IOT is specific to the British Indian Ocean Territory; other areas in the Indian Ocean use different offsets like UTC+04:00 or UTC+05:00.
- How does IOT compare to nearby time zones?
- IOT is one hour ahead of Maldives Time (UTC+05:00) and one hour behind Christmas Island Time (UTC+07:00).
- When was IOT last updated?
- The current offset has been in effect since May 30, 2021, and remains unchanged.
- Is IOT used for civilian timekeeping?
- Yes, it’s the official time for the territory, though access to the region is highly restricted due to its military significance.
- What makes IOT unique?
- It’s one of the few time zones with no daylight saving and only a single member zone, making it exceptionally stable and predictable.
Free · Developer API
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