Sunrise and Sunset times in Haikou, China 
Haikou
Hainan
Time zone: Asia/Chongqing, UTC 8 h.
Latitude: 20.05, Longitude: 110.32
2 046 190 people
| Date | Sunrise | Solar Noon | Sunset | Length of day |
|---|---|---|---|---|
| 2025-Jul-01, Tuesday | 06:02:50 | 12:42:36 | 19:22:22 | 13h 19m 32s |
| 2025-Jul-02, Wednesday | 06:03:10 | 12:42:48 | 19:22:26 | 13h 19m 16s |
| 2025-Jul-03, Thursday | 06:03:29 | 12:42:59 | 19:22:29 | 13h 19m 0s |
| 2025-Jul-04, Friday | 06:03:49 | 12:43:10 | 19:22:31 | 13h 18m 42s |
| 2025-Jul-05, Saturday | 06:04:09 | 12:43:20 | 19:22:31 | 13h 18m 22s |
| 2025-Jul-06, Sunday | 06:04:30 | 12:43:30 | 19:22:31 | 13h 18m 1s |
| 2025-Jul-07, Monday | 06:04:51 | 12:43:40 | 19:22:30 | 13h 17m 39s |
| 2025-Jul-08, Tuesday | 06:05:12 | 12:43:50 | 19:22:27 | 13h 17m 15s |
| 2025-Jul-09, Wednesday | 06:05:34 | 12:43:59 | 19:22:24 | 13h 16m 50s |
| 2025-Jul-10, Thursday | 06:05:55 | 12:44:07 | 19:22:19 | 13h 16m 24s |
| 2025-Jul-11, Friday | 06:06:17 | 12:44:15 | 19:22:13 | 13h 15m 56s |
| 2025-Jul-12, Saturday | 06:06:40 | 12:44:23 | 19:22:07 | 13h 15m 27s |
| 2025-Jul-13, Sunday | 06:07:02 | 12:44:30 | 19:21:59 | 13h 14m 57s |
| 2025-Jul-14, Monday | 06:07:24 | 12:44:37 | 19:21:50 | 13h 14m 26s |
| 2025-Jul-15, Tuesday | 06:07:47 | 12:44:43 | 19:21:40 | 13h 13m 53s |
| 2025-Jul-16, Wednesday | 06:08:09 | 12:44:49 | 19:21:29 | 13h 13m 20s |
| 2025-Jul-17, Thursday | 06:08:32 | 12:44:54 | 19:21:17 | 13h 12m 45s |
| 2025-Jul-18, Friday | 06:08:55 | 12:44:59 | 19:21:03 | 13h 12m 8s |
| 2025-Jul-19, Saturday | 06:09:17 | 12:45:03 | 19:20:49 | 13h 11m 32s |
| 2025-Jul-20, Sunday | 06:09:40 | 12:45:07 | 19:20:33 | 13h 10m 53s |
| 2025-Jul-21, Monday | 06:10:03 | 12:45:10 | 19:20:17 | 13h 10m 14s |
| 2025-Jul-22, Tuesday | 06:10:26 | 12:45:12 | 19:19:59 | 13h 9m 33s |
| 2025-Jul-23, Wednesday | 06:10:48 | 12:45:14 | 19:19:40 | 13h 8m 52s |
| 2025-Jul-24, Thursday | 06:11:11 | 12:45:16 | 19:19:20 | 13h 8m 9s |
| 2025-Jul-25, Friday | 06:11:33 | 12:45:16 | 19:18:59 | 13h 7m 26s |
| 2025-Jul-26, Saturday | 06:11:55 | 12:45:16 | 19:18:37 | 13h 6m 42s |
| 2025-Jul-27, Sunday | 06:12:18 | 12:45:16 | 19:18:14 | 13h 5m 56s |
| 2025-Jul-28, Monday | 06:12:40 | 12:45:15 | 19:17:50 | 13h 5m 10s |
| 2025-Jul-29, Tuesday | 06:13:02 | 12:45:13 | 19:17:25 | 13h 4m 23s |
| 2025-Jul-30, Wednesday | 06:13:23 | 12:45:11 | 19:16:59 | 13h 3m 36s |
| 2025-Jul-31, Thursday | 06:13:45 | 12:45:08 | 19:16:31 | 13h 2m 46s |
Haikou on China map:
Cities in the same time zone Asia/Chongqing
Guangzhou (Guangdong), Shenzhen (Guangdong), Chongqing (Chongqing), Dongguan (Guangdong), Chengdu (Sichuan), Xi'an (Shaanxi), Hechi (Guangxi), Guiyang (Guizhou), Kunming (Yunnan), Taiyuan (Shanxi), Changsha (Hunan), Xiangtan (Hunan), Lanzhou (Gansu), Gaoping (Sichuan), Nanning (Guangxi), Baotou (Inner Mongolia), Nanyang (Henan), Hohhot (Inner Mongolia), Luoyang (Henan), Jingling (Hubei), Sanzhou (Chongqing), Zhanjiang (Guangdong), Xiantao (Hubei), Luzhou (Sichuan), Liuzhou (Guangxi), Changde (Hunan), Neijiang (Sichuan), Suining (Sichuan), Mianyang (Sichuan), Yiyang (Hunan)
Largest Populated Areas in China
Shanghai (Shanghai), Beijing (Beijing), Guangzhou (Guangdong), Shenzhen (Guangdong), Wuhan (Hubei), Tianjin (Tianjin), Chongqing (Chongqing), Shenyang (Liaoning), Dongguan (Guangdong), Chengdu (Sichuan), Xi'an (Shaanxi), Hechi (Guangxi), Nanjing (Jiangsu), Guiyang (Guizhou), Harbin (Heilongjiang), Zhangzhou (Fujian), Changchun (Jilin), Dalian (Liaoning), Zibo (Shandong), Hangzhou (Zhejiang), Kunming (Yunnan), Taiyuan (Shanxi), Qingdao (Shandong), Jinan (Shandong), Zhengzhou (Henan), Fuzhou (Fujian), Changsha (Hunan), Xiangtan (Hunan), Lanzhou (Gansu), Xiamen (Fujian)
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