Tres Arroyos
Sunrise and sunset in Tres Arroyos
Today’s sunrise, sunset and twilight in Tres Arroyos, in local time. At 38.4° S, the day lasts from 9 h 29 min at the winter solstice to 14 h 51 min at the summer solstice.
Today · worked out at
Wednesday, October 21: sunrise at 06:06, sunset at 19:25.
Day length 13 h 19 min, 2 min 23 s longer than yesterday.
Solar noon at 12:45, with the Sun 62° above the horizon.
Times are Tres Arroyos time (GMT-3).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 04:31 | 21:00 |
| Nautical twilight | 05:06 | 20:25 |
| Civil twilight | 05:39 | 19:52 |
| Sunrise and sunset | 06:06 | 19:25 |
| Golden hour | 06:06–06:42 | 18:49–19:25 |
Each twilight begins at the morning time and ends at the evening one.
The year in Tres Arroyos
- Longest day: December 21, 14 h 51 min, from sunrise at 05:33 to sunset at 20:24.
- Shortest day: June 21, 9 h 29 min, from sunrise at 08:18 to sunset at 17:47.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 06:01 | 20:23 | 14 h 22 min |
| February 21 | 06:36 | 19:52 | 13 h 15 min |
| March 21 | 07:05 | 19:10 | 12 h 06 min |
| April 21 | 07:33 | 18:25 | 10 h 51 min |
| May 21 | 08:00 | 17:54 | 9 h 53 min |
| June 21 | 08:18 | 17:47 | 9 h 29 min |
| July 21 | 08:11 | 18:04 | 9 h 53 min |
| August 21 | 07:38 | 18:30 | 10 h 51 min |
| September 21 | 06:51 | 18:56 | 12 h 05 min |
| October 21 | 06:06 | 19:25 | 13 h 19 min |
| November 21 | 05:35 | 19:59 | 14 h 24 min |
| December 21 | 05:33 | 20:24 | 14 h 51 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 38.4° S, 60.3° W, 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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