Time in BST and HDT
The time difference between Bougainville Standard Time (BST) and Hawaii–Aleutian Daylight Time (HDT) is 20 hours. Hawaii–Aleutian Daylight Time is 20 hours behind Bougainville Standard Time.
This means 9am BST is 1pm HDT (previous day) and 5pm BST is 9pm HDT (previous day).
Bougainville Standard Time
- The current local time in BST is 7:36 pm (September 2, 2026)
- BST time zone offset is UTC+11:00
Hawaii–Aleutian Daylight Time
- The current local time in HDT is 5:36 pm (September 2, 2026)
- HDT time zone offset is UTC-09:00
How to convert Bougainville Standard Time to Hawaii–Aleutian Daylight Time?
Subtract 20 hours from Bougainville Standard Time to get Hawaii–Aleutian Daylight Time.
Time in BST
00:00
Time in HDT
00:00
Use the slider above to convert Bougainville Standard Time to Hawaii–Aleutian Daylight Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| BST | HDT |
|---|---|
| 12am | 4am |
| 1am | 5am |
| 2am | 6am |
| 3am | 7am |
| 4am | 8am |
| 5am | 9am |
| 6am | 10am |
| 7am | 11am |
| 8am | 12pm |
| 9am | 1pm |
| 10am | 2pm |
| 11am | 3pm |
| 12pm | 4pm |
| 1pm | 5pm |
| 2pm | 6pm |
| 3pm | 7pm |
| 4pm | 8pm |
| 5pm | 9pm |
| 6pm | 10pm |
| 7pm | 11pm |
| 8pm | 12am |
| 9pm | 1am |
| 10pm | 2am |
| 11pm | 3am |