Time zone · Oceania
BOUGAI
Bougainville Time
Bougainville simple, no-nonsense UTC+11 hour across the entire Autonomous Region. Put simply: Bougainville keeps it simple, running a single, no-nonsense UTC+11 clock that never shifts for daylight saving. Because the region doesn’t observe DST and covers one of the more remote, low‑latitude island arcs of Papua New Guinea, its offset has been stable for years, making it easy to schedule with but a little far-flung for a casual lunch call from most of the world.
Saturday, June 6, 2026
Current offset
UTC+11:00
Standard · +11
Daylight saving
Not observed
Year-round standard time
IANA zones
1
None observe daylight saving
DST offset
—
No summer variant
About BOUGAI
A fixed, year-round offset.
Bougainville simple, no-nonsense UTC+11 hour across the entire Autonomous Region. Put simply: Bougainville keeps it simple, running a single, no-nonsense UTC+11 clock that never shifts for daylight saving. Because the region doesn’t observe DST and covers one of the more remote, low‑latitude island arcs of Papua New Guinea, its offset has been stable for years, making it easy to schedule with but a little far-flung for a casual lunch call from most of the world.
IANA zones · the technical identifiers
The zone that resolve to BOUGAI.
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 BOUGAI is used
One country.
Same offset · UTC+11:00
Other zones at UTC+11:00 right now.
These named zones share BOUGAI's offset today. When daylight saving rules differ, they drift apart for part of the year.
Frequently asked questions
Common questions about BOUGAI, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- What time zone does Bougainville use?
- The entire Autonomous Region of Bougainville runs on the single offset of UTC+11:00 under the identifier Pacific/Bougainville.
- Does Bougainville observe daylight saving time?
- No, Bougainville does not observe daylight saving time and currently has no scheduled clock changes.
- Why is Bougainville’s time so stable?
- Because Bougainville sits close to the equator with no daylight saving policy, its UTC+11 offset has remained unchanged for years.
- When did Bougainville settle on UTC+11?
- Pacific/Bougainville has been on UTC+11 since 2014-12-28 at 03:00 local, after breaking away from Papua New Guinea’s former AEST offset.
- How hard is it to coordinate with partners in Bougainville?
- Bougainville’s fixed UTC+11 makes scheduling predictable, though large offsets can still mean late-night or early-morning calls with Europe and the Americas.
- Who uses Bougainville Time outside the region?
- UTC+11 is tracked globally for logistics, islands shipping and remote-site shifts, but Bougainville itself is the only major area using the BOUGAI code.
- Can I count on Bougainville’s time for APIs?
- Yes, standard libraries model Pacific/Bougainville as a permanent UTC+11 with no daylight transitions, so it reliably stays in sync for software.
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