Time in AST and TOT
The time difference between Atlantic Standard Time (AST) and Tonga Time (TOT) is 17 hours. Tonga Time is 17 hours ahead of Atlantic Standard Time.
This means 9am AST is 2am TOT (next day) and 5pm AST is 10am TOT (next day).
Atlantic Standard Time
- The current local time in AST is 2:50 pm (July 18, 2026)
- AST time zone offset is UTC-04:00
Tonga Time
- The current local time in TOT is 11:50 pm (July 18, 2026)
- TOT time zone offset is UTC+13:00
How to convert Atlantic Standard Time to Tonga Time?
Add 17 hours to Atlantic Standard Time to get Tonga Time.
Time in AST
00:00
Time in TOT
00:00
Use the slider above to convert Atlantic Standard 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
| AST | TOT |
|---|---|
| 12am | 5pm |
| 1am | 6pm |
| 2am | 7pm |
| 3am | 8pm |
| 4am | 9pm |
| 5am | 10pm |
| 6am | 11pm |
| 7am | 12am |
| 8am | 1am |
| 9am | 2am |
| 10am | 3am |
| 11am | 4am |
| 12pm | 5am |
| 1pm | 6am |
| 2pm | 7am |
| 3pm | 8am |
| 4pm | 9am |
| 5pm | 10am |
| 6pm | 11am |
| 7pm | 12pm |
| 8pm | 1pm |
| 9pm | 2pm |
| 10pm | 3pm |
| 11pm | 4pm |