time-and-space.science/sun

Sunrise & Sunset in Buenos Aires, Argentina

The sun rises in Buenos Aires today at 7:42 AM and sets at 6:18 PM, giving 10 hours 36 minutes of daylight — 2 minutes more than yesterday. First light is at 7:15 AM, last light at 6:45 PM, and solar noon at 1:00 PM.

It's 11:25 PM Argentina Standard Time in Buenos Aires.

Argentina Standard Time · Saturday, August 8, 2026 · Calculated for central Buenos Aires — recomputed live in your browser for today's date.

Daylight in Buenos Aires

10 hours 36 minutes of daylight

Next: Sunrise tomorrow at 7:41 AM

Sunrise 7:42 AM · Sunset 6:18 PM

Sunrise 7:42 AMSunset 6:18 PMSolar noon Noon 1:00 PM · sun 39° highFirst light First 7:15 AMLast light Last 6:45 PM12 AM6 AM12 PM6 PM12 AM

The curve is how high the sun climbs through the day; the band beneath it runs from first light to last light.

24-hour sun clock

01234567891011121314151617181920212223
First light7:15 AM
Sunrise7:42 AM
Solar noon1:00 PM
Sunset6:18 PM
Last light6:45 PM
Day length10 h 36 m

Where the sun is right now

Drag to move the sun and moon through the day

Altitude-61.9°
Directionsouthwest
Azimuth234.4°
Right nowNight

Buenos Aires is the marker on the globe — on the night half right now, riding the dotted circle its spot traces as the Earth turns. The moon is 50° from the sun in the sky now, and that angle is the phase: waning crescent. You are looking down on the Earth from far above its orbit, from the south — the side you are on — with sunlight arriving from the top left, so the half of the Earth facing that way is the half having its day. Sizes and distances are not to scale; the directions are.

That angle sets the tides, too. The moon does most of the pulling and the sun about half as much, so when the two line up — new moon and full moon — their pulls add and the tide runs to its biggest (spring tides); when they sit square on at the quarters the pulls fight and it runs to its smallest (neaps). The coast follows a day or two behind, and the shape of the shore matters as much as the sky does.

Also see moonrise, moonset & the phase in Buenos Aires, and the Sun, Earth & Moon movement simulator for Buenos Aires, to watch how the three move together over a day, a week or a month.

The moon is below the horizon here right now (-64.6°). When it rises, and tonight's phase →

The sun is far below the horizon — full astronomical darkness. Altitude is how far above the horizon the sun sits; azimuth is the compass bearing to look along, measured clockwise from north. Shown for 11:25 PM; this updates to the live position when the page loads.

Sunrise & sunset tomorrow in Buenos Aires

Sunday, August 9, 2026

Sunrise tomorrow7:41 AM
Sunset tomorrow6:19 PM
Daylight tomorrow10 h 38 m

Tomorrow in Buenos Aires the sun rises at 7:41 AM and sets at 6:19 PM — 10 hours 38 minutes of daylight, 2 minutes longer than today. Recomputed in your browser, so it is always the next day from now.

Twilight, golden hour & blue hour

Morning
Astronomical twilight6:16 AM – 6:45 AM
Nautical twilight6:45 AM – 7:15 AM
Civil twilight7:15 AM – 7:42 AM
Blue hour7:15 AM – 7:26 AM
Golden hour7:26 AM – 8:18 AM
Evening
Golden hour5:42 PM – 6:34 PM
Blue hour6:34 PM – 6:45 PM
Civil twilight6:18 PM – 6:45 PM
Nautical twilight6:45 PM – 7:15 PM
Astronomical twilight7:15 PM – 7:44 PM
Tonight's moon: Waning crescent, 18% lit — rises 4:05 AM, sets 1:38 PM. Moonrise, moonset & the phase calendar →

The three twilights are just how far the sun is below the horizon: civil to −6° (bright enough to read outside), nautical to −12° (the horizon is still visible at sea), astronomical to −18° (true darkness for stargazing). Golden hour is the warm, low-angle light photographers love, when the sun sits between −4° and +6°; blue hour is the deep-blue band just beyond it, from −6° to −4°. A dash means the sun never gets that low here on this date.

Next 7 days

DaySunriseSunsetDay lengthDaily change
Today Sat, Aug 87:42 AM6:18 PM10 h 36 m+2 min
Tomorrow Sun, Aug 97:41 AM6:19 PM10 h 38 m+2 min
Mon, Aug 107:40 AM6:20 PM10 h 40 m+2 min
Tue, Aug 117:39 AM6:20 PM10 h 42 m+2 min
Wed, Aug 127:38 AM6:21 PM10 h 43 m+2 min
Thu, Aug 137:37 AM6:22 PM10 h 45 m+2 min
Fri, Aug 147:36 AM6:23 PM10 h 47 m+2 min

Sunrise & sunset through the year

Longest day: December 22 — 14 h 28 m of daylight. Shortest day: June 21 — 9 h 50 m.

Daylight & seasons in Buenos Aires

What time is sunrise tomorrow in Buenos Aires, Argentina?

Tomorrow (Sunday, August 9, 2026) the sun rises at 7:41 AM in Buenos Aires and sets at 6:19 PM, giving 10 hours 38 minutes of daylight. The card above recomputes this in your browser, so it is always the day after today wherever you are reading it.

What time is sunrise in Buenos Aires, Argentina today?

The card above computes it live in your browser for today's date, using Buenos Aires's coordinates — along with sunset, solar noon, first light and last light, all in Buenos Aires's own time zone.

What are first light and last light?

Civil twilight — when the sun is less than 6° below the horizon. It's bright enough for most outdoor activities before sunrise and after sunset.

Why do the times change every day?

Earth's tilted axis means the sun's path moves through the seasons — days lengthen toward the summer solstice and shorten toward the winter solstice, so sunrise and sunset shift a little every day.

About Buenos Aires

CityBuenos Aires
CountryArgentina
Time zoneAmerica/Argentina/Buenos_Aires — Argentina Standard Time
UTC offsetUTC−3
Latitude34.6000° S
Longitude58.3800° W

These coordinates are what every time on this page is solved for — sunrise, moonrise and the rest are computed from this exact point, not from a regional average.

Related astronomical information

Calculated astronomical positions for these coordinates. Local weather and conditions are not modelled.

Nearby & related

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