What time is it in Tonga?

Tonga stays on UTC+13:00 all year. Its offset from UTC never moves, so its relationship to places that do change shifts twice a year instead — which is usually why someone checks. Right now it is 13 hours ahead of UTC, and 18 hours ahead of New York.

Tongatapu is 18 hours ahead of New York and 21 hours ahead of Los Angeles. 9am in New York is 3:00 am the next day in Tongatapu.

To convert a specific time rather than read the current one, the converter shows both directions with the next clock change for each.

The day is 13 hours 6 minutes long in Tongatapu, and gaining 1 minute a day. The sun peaks at 12:25 pm, 25 minutes after noon on the clock. A UTC offset is a promise that the sun is overhead at midday on one meridian, and Tongatapu sits 1,481 minutes of solar time west of UTC+13:00’s. The rest is the equation of time, which swings about a quarter of an hour either way across the year.

Tongatapu lies inside the tropics, so the sun passes directly overhead at noon twice a year — around January 14 and November 26 in 2026, when a vertical object casts almost no shadow. Nowhere outside the tropics ever sees that. The longest day is 13 hours 25 minutes and the shortest 10 hours 51 minutes, 154 minutes apart.

Tonga has kept UTC+13:00 since Sunday, January 15, 2017, when it moved from UTC+14:00. Before that its clocks read 1 hour ahead of what they read now.

On UTC+13:00 right now, the same clock as Tonga: