Sunrise and Sunset times in Vientiane, Laos 
Today:
 Sunrise: 06:35:30
|
 Sunset: 17:38:47
|
Day Length: 11h 3m 17s
Time zone: Asia/Vientiane, UTC +7 h.
Latitude: 17.9667, Longitude: 102.6
Vientiane
Viangchan, Laos 
754 000 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Dec-01, Monday | 06:24:34 | 11:58:36 | 17:32:38 | 11h 8m 4s |
| 2025-Dec-02, Tuesday | 06:25:10 | 11:58:59 | 17:32:47 | 11h 7m 37s |
| 2025-Dec-03, Wednesday | 06:25:46 | 11:59:22 | 17:32:58 | 11h 7m 12s |
| 2025-Dec-04, Thursday | 06:26:22 | 11:59:46 | 17:33:09 | 11h 6m 47s |
| 2025-Dec-05, Friday | 06:26:59 | 12:00:10 | 17:33:22 | 11h 6m 23s |
| 2025-Dec-06, Saturday | 06:27:35 | 12:00:36 | 17:33:37 | 11h 6m 2s |
| 2025-Dec-07, Sunday | 06:28:11 | 12:01:01 | 17:33:52 | 11h 5m 41s |
| 2025-Dec-08, Monday | 06:28:46 | 12:01:27 | 17:34:08 | 11h 5m 22s |
| 2025-Dec-09, Tuesday | 06:29:22 | 12:01:54 | 17:34:26 | 11h 5m 4s |
| 2025-Dec-10, Wednesday | 06:29:57 | 12:02:21 | 17:34:45 | 11h 4m 48s |
| 2025-Dec-11, Thursday | 06:30:32 | 12:02:48 | 17:35:04 | 11h 4m 32s |
| 2025-Dec-12, Friday | 06:31:07 | 12:03:16 | 17:35:25 | 11h 4m 18s |
| 2025-Dec-13, Saturday | 06:31:42 | 12:03:44 | 17:35:47 | 11h 4m 5s |
| 2025-Dec-14, Sunday | 06:32:16 | 12:04:13 | 17:36:10 | 11h 3m 54s |
| 2025-Dec-15, Monday | 06:32:49 | 12:04:42 | 17:36:34 | 11h 3m 45s |
| 2025-Dec-16, Tuesday | 06:33:23 | 12:05:11 | 17:36:59 | 11h 3m 36s |
| 2025-Dec-17, Wednesday | 06:33:55 | 12:05:40 | 17:37:24 | 11h 3m 29s |
| 2025-Dec-18, Thursday | 06:34:28 | 12:06:09 | 17:37:51 | 11h 3m 23s |
| 2025-Dec-19, Friday | 06:34:59 | 12:06:39 | 17:38:19 | 11h 3m 20s |
| 2025-Dec-20, Saturday | 06:35:30 | 12:07:09 | 17:38:47 | 11h 3m 17s |
| 2025-Dec-21, Sunday | 06:36:01 | 12:07:38 | 17:39:16 | 11h 3m 15s |
| 2025-Dec-22, Monday | 06:36:30 | 12:08:08 | 17:39:46 | 11h 3m 16s |
| 2025-Dec-23, Tuesday | 06:36:59 | 12:08:38 | 17:40:17 | 11h 3m 18s |
| 2025-Dec-24, Wednesday | 06:37:28 | 12:09:08 | 17:40:48 | 11h 3m 20s |
| 2025-Dec-25, Thursday | 06:37:55 | 12:09:38 | 17:41:20 | 11h 3m 25s |
| 2025-Dec-26, Friday | 06:38:22 | 12:10:07 | 17:41:52 | 11h 3m 30s |
| 2025-Dec-27, Saturday | 06:38:48 | 12:10:37 | 17:42:26 | 11h 3m 38s |
| 2025-Dec-28, Sunday | 06:39:13 | 12:11:06 | 17:42:59 | 11h 3m 46s |
| 2025-Dec-29, Monday | 06:39:37 | 12:11:35 | 17:43:34 | 11h 3m 57s |
| 2025-Dec-30, Tuesday | 06:40:00 | 12:12:04 | 17:44:08 | 11h 4m 8s |
| 2025-Dec-31, Wednesday | 06:40:23 | 12:12:33 | 17:44:44 | 11h 4m 21s |
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)
Countries closest to Laos
*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