Today in Chaco, Argentina, the sun rises at 6:40 AM and sets at 7:06 PM, giving the city exactly 12h 26m of daylight. That is 2 minutes longer than yesterday—approaching the solar plateau near the Winter Solstice. With 77 days until the Winter Solstice on December 21, Chaco is currently in its Spring season.
Golden Hour & Twilight Windows in Chaco
For photographers, filmmakers, and outdoor enthusiasts, the morning golden hour in Chaco runs from N/A to 7:10 AM. The evening golden hour begins at 6:35 PM and lasts until 7:06 PM.
Civil twilight—when there is still sufficient ambient light to see clearly outdoors—begins at N/A. Chaco sits in the subtropics, where the annual swing in daylight is moderate.
Solar Noon & UV Index
Solar noon in Chaco falls exactly at 12:53 PM, which is the moment the sun reaches its peak altitude of 30.53 above the horizon. At this specific time, the solar angle produces a moderate UV level. Light protective clothing is adequate for most outdoor activities in Chaco today.
Why Does Sunrise Shift in Chaco?
At Chaco's latitude of -26.3829647°, the sun currently rises at an azimuth of 259.22° (W). Because of the Earth's axial tilt, this position shifts slightly every day. Sunrise and sunset times for Chaco are calculated using advanced solar algorithms (SunCalc) based on coordinates -26.3829647, -60.8816092. Times are mathematically accurate to ±30 seconds.
Historical Sunrise in Chaco (Past Years)
Due to the Earth's precise orbit, solar times remain highly consistent year over year. Here is a comparison of today's sunrise and sunset times in Chaco versus 1 year and 5 years ago:
| Year | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Today | 6:40 AM | 7:06 PM | 12h 26m |
| 2025 | 6:39 AM | 7:06 PM | 12h 26m |
| 2021 | 6:39 AM | 7:06 PM | 12h 26m |
Frequently Asked Questions
What time does the sun rise in Chaco today?
In Chaco, the sun rises at exactly 6:40 AM and sets at 7:06 PM today. This gives the city a total of 12h 26m of daylight.
When is golden hour in Chaco today?
Today, morning golden hour in Chaco runs from N/A to 7:10 AM. Evening golden hour begins at 6:35 PM and lasts until 7:03 PM.
Why does sunrise in Chaco shift every day?
At Chaco's latitude, the sun currently rises at an azimuth of 259.22° (W). Because of Earth's tilt, the city is approaching the solar plateau near the Winter Solstice until the Winter Solstice on December 21.
What is the UV Index in Chaco at solar noon?
Solar noon occurs at 12:53 PM when the sun reaches 30.53. This produces a moderate UV level. Light protective clothing is adequate for most outdoor activities in Chaco today.
Has the sunrise time in Chaco changed compared to previous years?
Due to the Earth's precise orbit, solar times remain highly consistent year over year. Exactly one year ago in 2025, sunrise was at 6:39 AM, and five years ago in 2021, it was at 6:39 AM.