Río Cuarto
Sunrise and sunset in Río Cuarto
Today’s sunrise, sunset and twilight in Río Cuarto, in local time. At 33.1° S, the day lasts from 9 h 58 min at the winter solstice to 14 h 21 min at the summer solstice.
Today · worked out at
Wednesday, October 21: sunrise at 06:29, sunset at 19:35.
Day length 13 h 06 min, 1 min 58 s longer than yesterday.
Solar noon at 13:01, with the Sun 68° above the horizon.
Times are Río Cuarto time (GMT-3).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 05:02 | 21:02 |
| Nautical twilight | 05:33 | 20:31 |
| Civil twilight | 06:03 | 20:00 |
| Sunrise and sunset | 06:29 | 19:35 |
| Golden hour | 06:29–07:02 | 19:01–19:35 |
Each twilight begins at the morning time and ends at the evening one.
The year in Río Cuarto
- Longest day: December 21, 14 h 21 min, from sunrise at 06:05 to sunset at 20:26.
- Shortest day: June 21, 9 h 58 min, from sunrise at 08:20 to sunset at 18:18.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 06:29 | 20:27 | 13 h 58 min |
| February 21 | 06:59 | 20:02 | 13 h 03 min |
| March 21 | 07:21 | 19:27 | 12 h 06 min |
| April 21 | 07:43 | 18:47 | 11 h 04 min |
| May 21 | 08:05 | 18:22 | 10 h 17 min |
| June 21 | 08:20 | 18:18 | 9 h 58 min |
| July 21 | 08:15 | 18:32 | 10 h 17 min |
| August 21 | 07:48 | 18:53 | 11 h 05 min |
| September 21 | 07:08 | 19:13 | 12 h 05 min |
| October 21 | 06:29 | 19:35 | 13 h 06 min |
| November 21 | 06:04 | 20:02 | 13 h 59 min |
| December 21 | 06:05 | 20:26 | 14 h 21 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 33.1° S, 64.4° 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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