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-Jun-01, Sunday | 05:33:25 | 12:07:24 | 18:41:23 | 13h 7m 58s |
| 2025-Jun-02, Monday | 05:33:22 | 12:07:33 | 18:41:45 | 13h 8m 23s |
| 2025-Jun-03, Tuesday | 05:33:20 | 12:07:43 | 18:42:06 | 13h 8m 46s |
| 2025-Jun-04, Wednesday | 05:33:19 | 12:07:53 | 18:42:27 | 13h 9m 8s |
| 2025-Jun-05, Thursday | 05:33:20 | 12:08:04 | 18:42:48 | 13h 9m 28s |
| 2025-Jun-06, Friday | 05:33:21 | 12:08:15 | 18:43:09 | 13h 9m 48s |
| 2025-Jun-07, Saturday | 05:33:23 | 12:08:26 | 18:43:29 | 13h 10m 6s |
| 2025-Jun-08, Sunday | 05:33:25 | 12:08:37 | 18:43:49 | 13h 10m 24s |
| 2025-Jun-09, Monday | 05:33:29 | 12:08:49 | 18:44:09 | 13h 10m 40s |
| 2025-Jun-10, Tuesday | 05:33:34 | 12:09:01 | 18:44:28 | 13h 10m 54s |
| 2025-Jun-11, Wednesday | 05:33:39 | 12:09:13 | 18:44:47 | 13h 11m 8s |
| 2025-Jun-12, Thursday | 05:33:45 | 12:09:25 | 18:45:05 | 13h 11m 20s |
| 2025-Jun-13, Friday | 05:33:52 | 12:09:38 | 18:45:23 | 13h 11m 31s |
| 2025-Jun-14, Saturday | 05:34:00 | 12:09:50 | 18:45:41 | 13h 11m 41s |
| 2025-Jun-15, Sunday | 05:34:09 | 12:10:03 | 18:45:58 | 13h 11m 49s |
| 2025-Jun-16, Monday | 05:34:18 | 12:10:16 | 18:46:14 | 13h 11m 56s |
| 2025-Jun-17, Tuesday | 05:34:28 | 12:10:29 | 18:46:30 | 13h 12m 2s |
| 2025-Jun-18, Wednesday | 05:34:39 | 12:10:42 | 18:46:45 | 13h 12m 6s |
| 2025-Jun-19, Thursday | 05:34:51 | 12:10:55 | 18:47:00 | 13h 12m 9s |
| 2025-Jun-20, Friday | 05:35:03 | 12:11:08 | 18:47:14 | 13h 12m 11s |
| 2025-Jun-21, Saturday | 05:35:16 | 12:11:21 | 18:47:27 | 13h 12m 11s |
| 2025-Jun-22, Sunday | 05:35:29 | 12:11:34 | 18:47:40 | 13h 12m 11s |
| 2025-Jun-23, Monday | 05:35:43 | 12:11:47 | 18:47:52 | 13h 12m 9s |
| 2025-Jun-24, Tuesday | 05:35:58 | 12:12:00 | 18:48:03 | 13h 12m 5s |
| 2025-Jun-25, Wednesday | 05:36:13 | 12:12:13 | 18:48:13 | 13h 12m 0s |
| 2025-Jun-26, Thursday | 05:36:29 | 12:12:26 | 18:48:23 | 13h 11m 54s |
| 2025-Jun-27, Friday | 05:36:45 | 12:12:38 | 18:48:32 | 13h 11m 47s |
| 2025-Jun-28, Saturday | 05:37:02 | 12:12:51 | 18:48:40 | 13h 11m 38s |
| 2025-Jun-29, Sunday | 05:37:19 | 12:13:03 | 18:48:47 | 13h 11m 28s |
| 2025-Jun-30, Monday | 05:37:36 | 12:13:15 | 18:48:53 | 13h 11m 17s |
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