Time in TOT and IST
The time difference between Tonga Time (TOT) and Irish Standard Time (IST) is 12 hours. Irish Standard Time is 12 hours behind Tonga Time.
This means 9am TOT is 9pm IST (previous day) and 5pm TOT is 5am IST.
Tonga Time
- The current local time in TOT is 1:44 am (July 19, 2026)
- TOT time zone offset is UTC+13:00
Irish Standard Time
- The current local time in IST is 1:44 pm (July 18, 2026)
- IST time zone offset is UTC+01:00
How to convert Tonga Time to Irish Standard Time?
Subtract 12 hours from Tonga Time to get Irish Standard Time.
Time in TOT
00:00
Time in IST
00:00
Use the slider above to convert Tonga Time to Irish 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 | IST |
|---|---|
| 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 |