Time in GMT and TOT
The time difference between Greenwich Mean Time (GMT) and Tonga Time (TOT) is 13 hours. Tonga Time is 13 hours ahead of Greenwich Mean Time.
This means 9am GMT is 10pm TOT and 5pm GMT is 6am TOT (next day).
Greenwich Mean Time
- The current local time in GMT is 11:42 am (July 18, 2026)
- GMT time zone offset is UTC+00:00
Tonga Time
- The current local time in TOT is 12:42 am (July 19, 2026)
- TOT time zone offset is UTC+13:00
How to convert Greenwich Mean Time to Tonga Time?
Add 13 hours to Greenwich Mean Time to get Tonga Time.
Time in GMT
00:00
Time in TOT
00:00
Use the slider above to convert Greenwich Mean 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
| GMT | TOT |
|---|---|
| 12am | 1pm |
| 1am | 2pm |
| 2am | 3pm |
| 3am | 4pm |
| 4am | 5pm |
| 5am | 6pm |
| 6am | 7pm |
| 7am | 8pm |
| 8am | 9pm |
| 9am | 10pm |
| 10am | 11pm |
| 11am | 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 |