Clock change · IANA tzdata 2026e
Does Tonga change its clocks?
No: Tonga keeps the same time all year, UTC+13. IANA tzdata 2026e has no clock change scheduled.
No clock change
UTC+13 all year
Last changeSunday, 15 January 2017: the clocks went back 1 hour, from UTC+14 to UTC+13.
Now in Nuku'alofaUTC+13
History
When did Tonga last change its clocks?
Sunday, 15 January 2017: the clocks went back 1 hour, from UTC+14 to UTC+13.
No clock change in 2026–2028.
Questions
Clock changes in Tonga: questions
When do the clocks change in Tonga in 2026?
There is no clock change in Tonga in 2026: UTC+13 all year.
Do the clocks go forward or back?
Neither: Tonga keeps UTC+13 all year.
Will I get an hour more sleep?
No: the clocks do not change in Tonga, so every night has its usual length.
Does Tonga still use daylight saving time?
No: Tonga keeps UTC+13 all year. The clocks last changed on Sunday, 15 January 2017.