Time in TOT and AST
The time difference between Tonga Time (TOT) and Atlantic Standard Time (AST) is 17 hours. Atlantic Standard Time is 17 hours behind Tonga Time.
This means 9am TOT is 4pm AST (previous day) and 5pm TOT is 12am AST.
Tonga Time
- The current local time in TOT is 8:41 pm (September 2, 2026)
- TOT time zone offset is UTC+13:00
Atlantic Standard Time
- The current local time in AST is 11:41 am (September 2, 2026)
- AST time zone offset is UTC-04:00
How to convert Tonga Time to Atlantic Standard Time?
Subtract 17 hours from Tonga Time to get Atlantic Standard Time.
Time in TOT
00:00
Time in AST
00:00
Use the slider above to convert Tonga Time to Atlantic 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
| TOT | AST |
|---|---|
| 12am | 7am |
| 1am | 8am |
| 2am | 9am |
| 3am | 10am |
| 4am | 11am |
| 5am | 12pm |
| 6am | 1pm |
| 7am | 2pm |
| 8am | 3pm |
| 9am | 4pm |
| 10am | 5pm |
| 11am | 6pm |
| 12pm | 7pm |
| 1pm | 8pm |
| 2pm | 9pm |
| 3pm | 10pm |
| 4pm | 11pm |
| 5pm | 12am |
| 6pm | 1am |
| 7pm | 2am |
| 8pm | 3am |
| 9pm | 4am |
| 10pm | 5am |
| 11pm | 6am |