Sunrise and Sunset times in Haikou, China 
Today:
 Sunrise: 07:05:21
|
 Sunset: 18:01:18
|
Day Length: 10h 55m 57s
Time zone: Asia/Chongqing, UTC +8 h.
Latitude: 20.05, Longitude: 110.32
Haikou
Hainan, China 
2 046 190 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Dec-01, Monday | 06:57:23 | 12:27:42 | 17:58:02 | 11h 0m 39s |
| 2025-Dec-02, Tuesday | 06:58:01 | 12:28:05 | 17:58:09 | 11h 0m 8s |
| 2025-Dec-03, Wednesday | 06:58:39 | 12:28:29 | 17:58:18 | 10h 59m 39s |
| 2025-Dec-04, Thursday | 06:59:17 | 12:28:53 | 17:58:28 | 10h 59m 11s |
| 2025-Dec-05, Friday | 06:59:54 | 12:29:17 | 17:58:40 | 10h 58m 46s |
| 2025-Dec-06, Saturday | 07:00:32 | 12:29:42 | 17:58:53 | 10h 58m 21s |
| 2025-Dec-07, Sunday | 07:01:09 | 12:30:08 | 17:59:07 | 10h 57m 58s |
| 2025-Dec-08, Monday | 07:01:46 | 12:30:34 | 17:59:22 | 10h 57m 36s |
| 2025-Dec-09, Tuesday | 07:02:23 | 12:31:01 | 17:59:38 | 10h 57m 15s |
| 2025-Dec-10, Wednesday | 07:02:59 | 12:31:28 | 17:59:56 | 10h 56m 57s |
| 2025-Dec-11, Thursday | 07:03:35 | 12:31:55 | 18:00:15 | 10h 56m 40s |
| 2025-Dec-12, Friday | 07:04:11 | 12:32:23 | 18:00:34 | 10h 56m 23s |
| 2025-Dec-13, Saturday | 07:04:46 | 12:32:51 | 18:00:55 | 10h 56m 9s |
| 2025-Dec-14, Sunday | 07:05:21 | 12:33:19 | 18:01:18 | 10h 55m 57s |
| 2025-Dec-15, Monday | 07:05:56 | 12:33:48 | 18:01:41 | 10h 55m 45s |
| 2025-Dec-16, Tuesday | 07:06:29 | 12:34:17 | 18:02:05 | 10h 55m 36s |
| 2025-Dec-17, Wednesday | 07:07:03 | 12:34:46 | 18:02:30 | 10h 55m 27s |
| 2025-Dec-18, Thursday | 07:07:35 | 12:35:16 | 18:02:57 | 10h 55m 22s |
| 2025-Dec-19, Friday | 07:08:07 | 12:35:45 | 18:03:24 | 10h 55m 17s |
| 2025-Dec-20, Saturday | 07:08:38 | 12:36:15 | 18:03:52 | 10h 55m 14s |
| 2025-Dec-21, Sunday | 07:09:09 | 12:36:45 | 18:04:21 | 10h 55m 12s |
| 2025-Dec-22, Monday | 07:09:39 | 12:37:15 | 18:04:51 | 10h 55m 12s |
| 2025-Dec-23, Tuesday | 07:10:08 | 12:37:45 | 18:05:22 | 10h 55m 14s |
| 2025-Dec-24, Wednesday | 07:10:36 | 12:38:14 | 18:05:53 | 10h 55m 17s |
| 2025-Dec-25, Thursday | 07:11:03 | 12:38:44 | 18:06:25 | 10h 55m 22s |
| 2025-Dec-26, Friday | 07:11:29 | 12:39:14 | 18:06:58 | 10h 55m 29s |
| 2025-Dec-27, Saturday | 07:11:55 | 12:39:43 | 18:07:32 | 10h 55m 37s |
| 2025-Dec-28, Sunday | 07:12:19 | 12:40:13 | 18:08:06 | 10h 55m 47s |
| 2025-Dec-29, Monday | 07:12:43 | 12:40:42 | 18:08:41 | 10h 55m 58s |
| 2025-Dec-30, Tuesday | 07:13:05 | 12:41:11 | 18:09:17 | 10h 56m 12s |
| 2025-Dec-31, Wednesday | 07:13:27 | 12:41:40 | 18:09:53 | 10h 56m 26s |
Day length in Haikou during the year on the chart:
Haikou on China map:
Locations 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)
Countries closest to China
*Calculation of distances from capital to capital
Daylight Hours FAQ: 10 Most Googled Questions Answered
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
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).
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks