Time in TOT and BST
The time difference between Tonga Time (TOT) and British Summer Time (BST) is 12 hours. British Summer Time is 12 hours behind Tonga Time.
This means 9am TOT is 9pm BST (previous day) and 5pm TOT is 5am BST.
Tonga Time
- The current local time in TOT is 1:40 am (July 19, 2026)
- TOT time zone offset is UTC+13:00
British Summer Time
- The current local time in BST is 1:40 pm (July 18, 2026)
- BST time zone offset is UTC+01:00
How to convert Tonga Time to British Summer Time?
Subtract 12 hours from Tonga Time to get British Summer Time.
Time in TOT
00:00
Time in BST
00:00
Use the slider above to convert Tonga Time to British Summer 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
| TOT | BST |
|---|---|
| 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 |