Papua New Guinea is divided into two time zones, namely:[1]
- Papua New Guinea Standard Time (UTC+10:00), which covers most of Papua New Guinea except the Autonomous Region of Bougainville.
- Bougainville Standard Time (UTC+11:00), which covers the Autonomous Region of Bougainville.[2]
IANA time zone database
The IANA time zone database gives Papua New Guinea two time zones, Pacific/Bougainville and Pacific/Port Moresby.[3]
| c.c.* | coordinates* | TZ* | Comments | UTC offset | DST |
|---|---|---|---|---|---|
| PG | −0613+15534 | Pacific/Bougainville | Bougainville | +11:00 | +11:00 |
| PG | −0930+14710 | Pacific/Port_Moresby | Papua New Guinea (most areas), Chuuk, Yap, Dumont d'Urville | +10:00 | +10:00 |