Sunrise and Sunset times in Kala`au, Tonga 
Kala`au
Tongatapu
Time zone: Pacific/Tongatapu, UTC 13 h.
Latitude: -21.1394, Longitude: -175.335
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Jul-01, Tuesday | 07:19:14 | 12:45:23 | 18:11:32 | 10h 52m 18s |
| 2025-Jul-02, Wednesday | 07:19:17 | 12:45:34 | 18:11:51 | 10h 52m 34s |
| 2025-Jul-03, Thursday | 07:19:18 | 12:45:45 | 18:12:11 | 10h 52m 53s |
| 2025-Jul-04, Friday | 07:19:19 | 12:45:55 | 18:12:32 | 10h 53m 13s |
| 2025-Jul-05, Saturday | 07:19:19 | 12:46:06 | 18:12:52 | 10h 53m 33s |
| 2025-Jul-06, Sunday | 07:19:17 | 12:46:15 | 18:13:14 | 10h 53m 57s |
| 2025-Jul-07, Monday | 07:19:15 | 12:46:25 | 18:13:35 | 10h 54m 20s |
| 2025-Jul-08, Tuesday | 07:19:11 | 12:46:34 | 18:13:57 | 10h 54m 46s |
| 2025-Jul-09, Wednesday | 07:19:07 | 12:46:43 | 18:14:19 | 10h 55m 12s |
| 2025-Jul-10, Thursday | 07:19:01 | 12:46:51 | 18:14:41 | 10h 55m 40s |
| 2025-Jul-11, Friday | 07:18:54 | 12:46:59 | 18:15:03 | 10h 56m 9s |
| 2025-Jul-12, Saturday | 07:18:46 | 12:47:06 | 18:15:26 | 10h 56m 40s |
| 2025-Jul-13, Sunday | 07:18:37 | 12:47:13 | 18:15:49 | 10h 57m 12s |
| 2025-Jul-14, Monday | 07:18:27 | 12:47:19 | 18:16:12 | 10h 57m 45s |
| 2025-Jul-15, Tuesday | 07:18:16 | 12:47:25 | 18:16:35 | 10h 58m 19s |
| 2025-Jul-16, Wednesday | 07:18:03 | 12:47:31 | 18:16:58 | 10h 58m 55s |
| 2025-Jul-17, Thursday | 07:17:50 | 12:47:35 | 18:17:21 | 10h 59m 31s |
| 2025-Jul-18, Friday | 07:17:35 | 12:47:40 | 18:17:44 | 11h 0m 9s |
| 2025-Jul-19, Saturday | 07:17:19 | 12:47:43 | 18:18:07 | 11h 0m 48s |
| 2025-Jul-20, Sunday | 07:17:02 | 12:47:46 | 18:18:31 | 11h 1m 29s |
| 2025-Jul-21, Monday | 07:16:44 | 12:47:49 | 18:18:54 | 11h 2m 10s |
| 2025-Jul-22, Tuesday | 07:16:25 | 12:47:51 | 18:19:17 | 11h 2m 52s |
| 2025-Jul-23, Wednesday | 07:16:05 | 12:47:53 | 18:19:40 | 11h 3m 35s |
| 2025-Jul-24, Thursday | 07:15:44 | 12:47:53 | 18:20:03 | 11h 4m 19s |
| 2025-Jul-25, Friday | 07:15:21 | 12:47:54 | 18:20:26 | 11h 5m 5s |
| 2025-Jul-26, Saturday | 07:14:58 | 12:47:53 | 18:20:49 | 11h 5m 51s |
| 2025-Jul-27, Sunday | 07:14:33 | 12:47:52 | 18:21:11 | 11h 6m 38s |
| 2025-Jul-28, Monday | 07:14:08 | 12:47:51 | 18:21:34 | 11h 7m 26s |
| 2025-Jul-29, Tuesday | 07:13:41 | 12:47:49 | 18:21:56 | 11h 8m 15s |
| 2025-Jul-30, Wednesday | 07:13:13 | 12:47:46 | 18:22:19 | 11h 9m 6s |
| 2025-Jul-31, Thursday | 07:12:44 | 12:47:43 | 18:22:41 | 11h 9m 57s |
Day length in Kala`au during the year on the chart:
Kala`au on Tonga map:
Largest Populated Areas in Tonga
Nuku`alofa (Tongatapu), Utulau (Tongatapu), Afa (Tongatapu), Lapaha (Tongatapu), Holonga (Tongatapu), Hoi (Tongatapu), Hamula (Tongatapu), Ha`asini (Tongatapu), Fua`amotu (Tongatapu), Fatumu (Tongatapu), Alaki (Tongatapu), Houma (Tongatapu), Nukuhetulu (Tongatapu), Tofoa (Tongatapu), Ha`ateiho (Tongatapu), Puke (Tongatapu), Hofoa (Tongatapu), Folaha (Tongatapu), Veitongo (Tongatapu), Ha`akame (Tongatapu), Ha`alalo (Tongatapu), Matahau (Tongatapu), Vaotu`u (Tongatapu), Fahefa (Tongatapu), Te`ekiu (Tongatapu), Lakepa (Tongatapu), Fatai (Tongatapu), Taliai Camp (Vava‘u), Ahau (Tongatapu), Haveluliku (Tongatapu)
Daylight Hours FAQ: 10 Most Googled Questions Answered
1. What are daylight hours?
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
2. Why are days shorter in winter and longer in summer?
Earth's 23.5° axial tilt causes uneven sunlight distribution. Your hemisphere receives less direct sunlight in winter (shorter days) and more in summer (longer days).
3. When is the longest day of the year?
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
4. When is the shortest day of the year?
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
5. How does latitude affect daylight hours?
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
6. Why do New York and Miami have different day lengths?
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
7. When are day and night equal?
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
How fast do days lengthen/shorten?
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
9. Where can I check daylight hours for my city?
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
10. Does daylight affect health?
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks