Sunrise & Sunset Times in Buenos Aires, AR
Today's exact sunrise, sunset, and daylight hours for Buenos Aires, Argentina. Plus solar noon, civil twilight, and golden hour times — calculated from Buenos Aires's coordinates (34.60° S, 58.38° W).
About sunrise and sunset in Buenos Aires
Buenos Aires, AR sits at 34.60° S latitude in the subtropical zone. The longest day of the year here lasts about 14h 18m (around the summer solstice in December), while the shortest day shrinks to 9h 42m — a year-round swing of 4h 36m. Because Buenos Aires is in the eastern part of the Buenos Aires time zone, solar noon arrives roughly 234 minutes after clock noon.
Subtropical — distinct but mild seasonal swing. The sun rises roughly east, swinging southeast in summer and northeast in winter, and sets roughly west, swinging southwest in summer and northwest in winter. Civil twilight (the period when the sun is between 0° and 6° below the horizon) lasts approximately 33 minutes around the equinoxes — a noticeable extended dawn and dusk window.
Quick facts for Buenos Aires
Solar noon offset reflects Buenos Aires's position in its time zone — the further from the time zone's standard meridian, the further the actual midday drifts from 12:00 on the clock.
Sunrise & Sunset in Buenos Aires
Today's sunrise and sunset times in Buenos Aires, Argentina. See exact sunrise, sunset, and daylight hours for Buenos Aires. Updated daily.
Related
Sunrise and sunset FAQ for Buenos Aires
How accurate are the Buenos Aires sunrise and sunset times?
Times are calculated using NOAA-grade astronomical algorithms based on Buenos Aires's exact coordinates (-34.6037, -58.3816) and time zone (America/Argentina/Buenos_Aires). Accuracy is typically within 1 minute. Local horizon obstructions (mountains, tall buildings) can shift the visible sunrise/sunset by a few minutes compared to the calculated value.
How long is the longest day of the year in Buenos Aires?
At Buenos Aires's latitude of 34.60° S, the longest day stretches to about 14h 18m on the December solstice. The shortest day, on the June solstice, is around 9h 42m — a year-round swing of roughly 4h 36m.
When is golden hour in Buenos Aires?
Golden hour in Buenos Aires occurs in the ~60-minute window after sunrise and before sunset, when the sun is low (typically below 6° elevation) and light is softer and warmer. Photographers favour this window for portraits and landscapes. The exact start/end depends on the season — golden hour is shorter near the equinoxes and longer in winter when the sun travels at a shallower angle.
Do Buenos Aires sunrise times change with daylight saving time?
Yes. All times shown here use Buenos Aires's local clock, which switches between standard time and daylight saving time on the dates set by US federal law (second Sunday in March, first Sunday in November). The actual position of the sun does not change — only the clock face does. See our Daylight Saving Time guide for the next change date.
In which direction does the sun rise and set in Buenos Aires?
In Buenos Aires, the sun rises in the east, swinging southeast in summer and northeast in winter, and sets in the west, swinging southwest in summer and northwest in winter. On the equinoxes (around 20 March and 22 September), the sun rises due east and sets due west. Between those dates, the sunrise/sunset points shift along the horizon as Earth's axial tilt changes the sun's declination.
What is solar noon, and when does it happen in Buenos Aires?
Solar noon is the moment the sun is at its highest point in the sky for the day. In Buenos Aires, solar noon arrives roughly 234 minutes after clock noon, because Buenos Aires sits in the eastern partof its time zone. The exact offset shifts a few minutes through the year due to Earth's elliptical orbit (the "equation of time").