Time in GYT and BST
The time difference between Guyana Time (GYT) and Bougainville Standard Time (BST) is 15 hours. Bougainville Standard Time is 15 hours ahead of Guyana Time.
This means 9am GYT is 12am BST (next day) and 5pm GYT is 8am BST (next day).
Guyana Time
- The current local time in GYT is 6:29 pm (July 18, 2026)
- GYT time zone offset is UTC-04:00
Bougainville Standard Time
- The current local time in BST is 1:29 am (July 19, 2026)
- BST time zone offset is UTC+11:00
How to convert Guyana Time to Bougainville Standard Time?
Add 15 hours to Guyana Time to get Bougainville Standard Time.
Time in GYT
00:00
Time in BST
00:00
Use the slider above to convert Guyana Time to Bougainville Standard 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
| GYT | BST |
|---|---|
| 12am | 3pm |
| 1am | 4pm |
| 2am | 5pm |
| 3am | 6pm |
| 4am | 7pm |
| 5am | 8pm |
| 6am | 9pm |
| 7am | 10pm |
| 8am | 11pm |
| 9am | 12am |
| 10am | 1am |
| 11am | 2am |
| 12pm | 3am |
| 1pm | 4am |
| 2pm | 5am |
| 3pm | 6am |
| 4pm | 7am |
| 5pm | 8am |
| 6pm | 9am |
| 7pm | 10am |
| 8pm | 11am |
| 9pm | 12pm |
| 10pm | 1pm |
| 11pm | 2pm |