Time in TOT and CHAST
The time difference between Tonga Time (TOT) and Chatham Standard Time (CHAST) is 15 minutes. Chatham Standard Time is 15 minutes behind Tonga Time.
This means 9am TOT is 8:45am CHAST and 5pm TOT is 4:45pm CHAST.
Tonga Time
- The current local time in TOT is 1:41 am (July 19, 2026)
- TOT time zone offset is UTC+13:00
Chatham Standard Time
- The current local time in CHAST is 1:26 am (July 19, 2026)
- CHAST time zone offset is UTC+12:45
How to convert Tonga Time to Chatham Standard Time?
Subtract 15 minutes from Tonga Time to get Chatham Standard Time.
Time in TOT
00:00
Time in CHAST
00:00
Use the slider above to convert Tonga Time to Chatham 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 | CHAST |
|---|---|
| 12am | 11:45pm |
| 1am | 0:45am |
| 2am | 1:45am |
| 3am | 2:45am |
| 4am | 3:45am |
| 5am | 4:45am |
| 6am | 5:45am |
| 7am | 6:45am |
| 8am | 7:45am |
| 9am | 8:45am |
| 10am | 9:45am |
| 11am | 10:45am |
| 12pm | 11:45am |
| 1pm | 12:45pm |
| 2pm | 1:45pm |
| 3pm | 2:45pm |
| 4pm | 3:45pm |
| 5pm | 4:45pm |
| 6pm | 5:45pm |
| 7pm | 6:45pm |
| 8pm | 7:45pm |
| 9pm | 8:45pm |
| 10pm | 9:45pm |
| 11pm | 10:45pm |