Time in BST and TOT
The time difference between British Summer Time (BST) and Tonga Time (TOT) is 12 hours. Tonga Time is 12 hours ahead of British Summer Time.
This means 9am BST is 9pm TOT and 5pm BST is 5am TOT (next day).
British Summer Time
- The current local time in BST is 3:14 pm (August 17, 2026)
- BST time zone offset is UTC+01:00
Tonga Time
- The current local time in TOT is 3:14 am (August 18, 2026)
- TOT time zone offset is UTC+13:00
How to convert British Summer Time to Tonga Time?
Add 12 hours to British Summer Time to get Tonga Time.
Time in BST
00:00
Time in TOT
00:00
Use the slider above to convert British Summer Time to Tonga 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 | TOT |
|---|---|
| 12am | 12pm |
| 1am | 1pm |
| 2am | 2pm |
| 3am | 3pm |
| 4am | 4pm |
| 5am | 5pm |
| 6am | 6pm |
| 7am | 7pm |
| 8am | 8pm |
| 9am | 9pm |
| 10am | 10pm |
| 11am | 11pm |
| 12pm | 12am |
| 1pm | 1am |
| 2pm | 2am |
| 3pm | 3am |
| 4pm | 4am |
| 5pm | 5am |
| 6pm | 6am |
| 7pm | 7am |
| 8pm | 8am |
| 9pm | 9am |
| 10pm | 10am |
| 11pm | 11am |