Sunrise and Sunset times in Vientiane, Laos 
Vientiane
☁️ Low chance of a spectacular sunset.
Viangchan, Laos
754 000 people
Current temperature 31 ° C 
Clear
Today:
 Sunrise: 05:58:19
|
 Sunset: 18:07:01
|
Day Length: 12h 8m 42s
Time zone: Asia/Vientiane, UTC 7 h.
Latitude: 17.9667, Longitude: 102.6
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Sep-01, Monday | 05:55:19 | 12:09:37 | 18:23:54 | 12h 28m 35s |
| 2025-Sep-02, Tuesday | 05:55:29 | 12:09:17 | 18:23:06 | 12h 27m 37s |
| 2025-Sep-03, Wednesday | 05:55:39 | 12:08:58 | 18:22:17 | 12h 26m 38s |
| 2025-Sep-04, Thursday | 05:55:48 | 12:08:38 | 18:21:28 | 12h 25m 40s |
| 2025-Sep-05, Friday | 05:55:58 | 12:08:18 | 18:20:38 | 12h 24m 40s |
| 2025-Sep-06, Saturday | 05:56:07 | 12:07:58 | 18:19:49 | 12h 23m 42s |
| 2025-Sep-07, Sunday | 05:56:16 | 12:07:37 | 18:18:59 | 12h 22m 43s |
| 2025-Sep-08, Monday | 05:56:25 | 12:07:17 | 18:18:08 | 12h 21m 43s |
| 2025-Sep-09, Tuesday | 05:56:34 | 12:06:56 | 18:17:18 | 12h 20m 44s |
| 2025-Sep-10, Wednesday | 05:56:43 | 12:06:35 | 18:16:27 | 12h 19m 44s |
| 2025-Sep-11, Thursday | 05:56:52 | 12:06:14 | 18:15:36 | 12h 18m 44s |
| 2025-Sep-12, Friday | 05:57:00 | 12:05:53 | 18:14:45 | 12h 17m 45s |
| 2025-Sep-13, Saturday | 05:57:09 | 12:05:31 | 18:13:54 | 12h 16m 45s |
| 2025-Sep-14, Sunday | 05:57:18 | 12:05:10 | 18:13:02 | 12h 15m 44s |
| 2025-Sep-15, Monday | 05:57:26 | 12:04:49 | 18:12:11 | 12h 14m 45s |
| 2025-Sep-16, Tuesday | 05:57:35 | 12:04:27 | 18:11:19 | 12h 13m 44s |
| 2025-Sep-17, Wednesday | 05:57:44 | 12:04:06 | 18:10:28 | 12h 12m 44s |
| 2025-Sep-18, Thursday | 05:57:53 | 12:03:44 | 18:09:36 | 12h 11m 43s |
| 2025-Sep-19, Friday | 05:58:01 | 12:03:23 | 18:08:44 | 12h 10m 43s |
| 2025-Sep-20, Saturday | 05:58:10 | 12:03:02 | 18:07:53 | 12h 9m 43s |
| 2025-Sep-21, Sunday | 05:58:19 | 12:02:40 | 18:07:01 | 12h 8m 42s |
| 2025-Sep-22, Monday | 05:58:28 | 12:02:19 | 18:06:10 | 12h 7m 42s |
| 2025-Sep-23, Tuesday | 05:58:37 | 12:01:58 | 18:05:18 | 12h 6m 41s |
| 2025-Sep-24, Wednesday | 05:58:47 | 12:01:37 | 18:04:27 | 12h 5m 40s |
| 2025-Sep-25, Thursday | 05:58:56 | 12:01:16 | 18:03:36 | 12h 4m 40s |
| 2025-Sep-26, Friday | 05:59:06 | 12:00:55 | 18:02:45 | 12h 3m 39s |
| 2025-Sep-27, Saturday | 05:59:16 | 12:00:35 | 18:01:54 | 12h 2m 38s |
| 2025-Sep-28, Sunday | 05:59:26 | 12:00:15 | 18:01:04 | 12h 1m 38s |
| 2025-Sep-29, Monday | 05:59:36 | 11:59:55 | 18:00:14 | 12h 0m 38s |
| 2025-Sep-30, Tuesday | 05:59:46 | 11:59:35 | 17:59:24 | 11h 59m 38s |
Day length in Vientiane during the year on the chart:
Vientiane on Laos map:
Largest Populated Areas in Laos
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)
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