Vientiane
Sunrise and sunset in Vientiane
Today’s sunrise, sunset and twilight in Vientiane, in local time. At 18° N, the day lasts from 11 h 03 min at the winter solstice to 13 h 12 min at the summer solstice.
Today · worked out at
Wednesday, October 21: sunrise at 06:04, sunset at 17:43.
Day length 11 h 39 min, 57 s shorter than yesterday.
Solar noon at 11:54, with the Sun 61° above the horizon.
Times are Vientiane time (GMT+7).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 04:51 | 18:56 |
| Nautical twilight | 05:17 | 18:31 |
| Civil twilight | 05:42 | 18:05 |
| Sunrise and sunset | 06:04 | 17:43 |
| Golden hour | 06:04–06:34 | 17:14–17:43 |
Each twilight begins at the morning time and ends at the evening one.
The year in Vientiane
- Longest day: June 21, 13 h 12 min, from sunrise at 05:35 to sunset at 18:47.
- Shortest day: December 22, 11 h 03 min, from sunrise at 06:36 to sunset at 17:39.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 06:44 | 17:57 | 11 h 14 min |
| February 21 | 06:33 | 18:13 | 11 h 39 min |
| March 21 | 06:13 | 18:20 | 12 h 07 min |
| April 21 | 05:49 | 18:27 | 12 h 38 min |
| May 21 | 05:35 | 18:37 | 13 h 02 min |
| June 21 | 05:35 | 18:47 | 13 h 12 min |
| July 21 | 05:44 | 18:47 | 13 h 03 min |
| August 21 | 05:53 | 18:32 | 12 h 39 min |
| September 21 | 05:58 | 18:06 | 12 h 09 min |
| October 21 | 06:04 | 17:43 | 11 h 39 min |
| November 21 | 06:18 | 17:32 | 11 h 14 min |
| December 21 | 06:35 | 17:39 | 11 h 03 min |
Good to know
- Sunrise and sunset are when the top of the Sun meets a level horizon, allowing for the usual bending of light by the air. Hills, buildings and height shift what you see by a few minutes.
- Civil, nautical and astronomical twilight end when the Sun is 6°, 12° and 18° below the horizon. Golden hour here is the photographers’ usual definition: the Sun less than 6° above it.
- Worked out when the page loads from NOAA’s solar equations, for 18° N, 102.6° E, and accurate to about a minute.
How the layers work, where their data comes from and what they can’t tell you: Day and night, live, The Sun, Moon and planets
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