Sunrise and Sunset times in Ban Bo-O, Laos 
Ban Bo-O
Viangchan
Time zone: Asia/Vientiane, UTC 7 h.
Latitude: 17.8905, Longitude: 102.613
| Date | Sunrise | Solar Noon | Sunset | Length of day |
|---|---|---|---|---|
| 2025-Jul-01, Tuesday | 05:37:54 | 12:13:26 | 18:48:59 | 13h 11m 5s |
| 2025-Jul-02, Wednesday | 05:38:12 | 12:13:38 | 18:49:03 | 13h 10m 51s |
| 2025-Jul-03, Thursday | 05:38:31 | 12:13:49 | 18:49:07 | 13h 10m 36s |
| 2025-Jul-04, Friday | 05:38:50 | 12:14:00 | 18:49:10 | 13h 10m 20s |
| 2025-Jul-05, Saturday | 05:39:09 | 12:14:10 | 18:49:12 | 13h 10m 3s |
| 2025-Jul-06, Sunday | 05:39:28 | 12:14:20 | 18:49:12 | 13h 9m 44s |
| 2025-Jul-07, Monday | 05:39:48 | 12:14:30 | 18:49:12 | 13h 9m 24s |
| 2025-Jul-08, Tuesday | 05:40:08 | 12:14:40 | 18:49:11 | 13h 9m 3s |
| 2025-Jul-09, Wednesday | 05:40:28 | 12:14:49 | 18:49:09 | 13h 8m 41s |
| 2025-Jul-10, Thursday | 05:40:48 | 12:14:57 | 18:49:06 | 13h 8m 18s |
| 2025-Jul-11, Friday | 05:41:08 | 12:15:05 | 18:49:02 | 13h 7m 54s |
| 2025-Jul-12, Saturday | 05:41:29 | 12:15:13 | 18:48:57 | 13h 7m 28s |
| 2025-Jul-13, Sunday | 05:41:49 | 12:15:20 | 18:48:51 | 13h 7m 2s |
| 2025-Jul-14, Monday | 05:42:10 | 12:15:27 | 18:48:44 | 13h 6m 34s |
| 2025-Jul-15, Tuesday | 05:42:31 | 12:15:33 | 18:48:36 | 13h 6m 5s |
| 2025-Jul-16, Wednesday | 05:42:51 | 12:15:39 | 18:48:26 | 13h 5m 35s |
| 2025-Jul-17, Thursday | 05:43:12 | 12:15:44 | 18:48:16 | 13h 5m 4s |
| 2025-Jul-18, Friday | 05:43:33 | 12:15:49 | 18:48:05 | 13h 4m 32s |
| 2025-Jul-19, Saturday | 05:43:53 | 12:15:53 | 18:47:53 | 13h 4m 0s |
| 2025-Jul-20, Sunday | 05:44:14 | 12:15:57 | 18:47:39 | 13h 3m 25s |
| 2025-Jul-21, Monday | 05:44:34 | 12:16:00 | 18:47:25 | 13h 2m 51s |
| 2025-Jul-22, Tuesday | 05:44:54 | 12:16:02 | 18:47:10 | 13h 2m 16s |
| 2025-Jul-23, Wednesday | 05:45:15 | 12:16:04 | 18:46:53 | 13h 1m 38s |
| 2025-Jul-24, Thursday | 05:45:35 | 12:16:05 | 18:46:36 | 13h 1m 1s |
| 2025-Jul-25, Friday | 05:45:55 | 12:16:06 | 18:46:17 | 13h 0m 22s |
| 2025-Jul-26, Saturday | 05:46:14 | 12:16:06 | 18:45:58 | 12h 59m 44s |
| 2025-Jul-27, Sunday | 05:46:34 | 12:16:06 | 18:45:37 | 12h 59m 3s |
| 2025-Jul-28, Monday | 05:46:53 | 12:16:05 | 18:45:16 | 12h 58m 23s |
| 2025-Jul-29, Tuesday | 05:47:12 | 12:16:03 | 18:44:53 | 12h 57m 41s |
| 2025-Jul-30, Wednesday | 05:47:31 | 12:16:01 | 18:44:30 | 12h 56m 59s |
| 2025-Jul-31, Thursday | 05:47:50 | 12:15:58 | 18:44:05 | 12h 56m 15s |
Ban Bo-O on Laos map:
Cities in the same time zone Asia/Vientiane
Vientiane (Viangchan), Louangphabang (Louangphabang), Pakxe (Champasak), Savannakhet (Savannakhét), Thakhek (Khammouan), Xam Nua (Houaphan), Xaignabouli (Xaignabouli), Champasak (Champasak), Ban Houayxay (Bokèo), Phongsali (Phôngsali), Salavan (Salavan), Attapu (Attapu), Louang Namtha (Louangnamtha), Ban Chom Cheng (Viangchan), Ban Na Lao Thong (Nong Khai), Ban Bo Na Ngoua (Viangchan), Ban Pha Khao (Viangchan), Ban Nongthak (Viangchan), Ban Nong Pha Nhac (Viangchan), Ban Na-Oy Nou (Viangchan), Ban Nakay (Viangchan), Ban Nahoy (Viangchan), Ban Houakeng (Champasak), Ban Sikhai (Viangchan), Ban Souanmon (Viangchan), Ban Toumaxa (Champasak), Ban Thin Then (Viangchan), Ban Kabao (Champasak), Ban Vattai Gnai (Viangchan), Ban Sithan Nua (Viangchan)
Largest Populated Areas in Laos
Vientiane (Viangchan), Louangphabang (Louangphabang), Pakxe (Champasak), Savannakhet (Savannakhét), Thakhek (Khammouan), Xam Nua (Houaphan), Xaignabouli (Xaignabouli), Champasak (Champasak), Ban Houayxay (Bokèo), Phongsali (Phôngsali), Salavan (Salavan), Attapu (Attapu), Louang Namtha (Louangnamtha), Ban Phon Kheng (Viangchan), Ban Nongthak (Viangchan), Ban Nong Pha Nhac (Viangchan), Ban Na-Oy Nou (Viangchan), Ban Nakay (Viangchan), Ban Nahoy (Viangchan), Ban Chom Cheng (Viangchan), Ban Don (Viangchan), Nahe (Viangchan), Ban Sithan Nua (Viangchan), Ban Kaoliao (Viangchan), Ban Nong Veng (Viangchan), Ban Thamouang (Viangchan), Ban Kabao (Champasak), Ban Souanmon (Viangchan), Ban Nongpanai (Viangchan), Ban Nongdouang (Viangchan)
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