DST of Tongatapu in 2025
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
-
At Sun Jan 19 03:00:00 2025, clocks in Tongatapu are turned backward 1 hour to Sun Jan 19 02:00:00 2025 to end DST
-
At Sun Nov 2 02:00:00 2025, clocks in Tongatapu are turned forward 1 hour to Sun Nov 2 03:00:00 2025 to start DST
DST of Tongatapu Over Years
| Year | Commences | Abbreviations | Time Change | Offset After |
| 1990 - 1998 | No changes, UTC+1300 all of the period | |||
| 1999 | 10-07, Thu 03:00 |
+13 -> +14 | 1 hour forward (start of DST) | UTC+1400 |
