time-and-space.science/sun

Sunrise & Sunset in Riverton, UT

The sun rises in Riverton today at 6:32 AM and sets at 8:36 PM, giving 14 hours 4 minutes of daylight — 2 minutes less than yesterday. First light is at 6:02 AM, last light at 9:06 PM, and solar noon at 1:34 PM.

It's 8:26 PM Mountain Daylight Time in Riverton.

Mountain Daylight Time · Saturday, August 8, 2026 · Calculated for central Riverton — recomputed live in your browser for today's date.

Daylight in Riverton

14 hours 4 minutes of daylight

Next: Sunset at 8:36 PM

Sunrise 6:32 AM · Sunset 8:36 PM

Sunrise 6:32 AMSunset 8:36 PMSolar noon Noon 1:34 PM · sun 65° highFirst light First 6:02 AMLast light Last 9:06 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

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First light6:02 AM
Sunrise6:32 AM
Solar noon1:34 PM
Sunset8:36 PM
Last light9:06 PM
Day length14 h 4 m

Where the sun is right now

Drag to move the sun and moon through the day

Altitude0.9°
Directionwest-northwest
Azimuth290.5°
Right nowDaylight

Riverton is the marker on the globe — on the daylit half right now, close to the line where day meets night, 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 north — 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 Riverton, and the Sun, Earth & Moon movement simulator for Riverton, to watch how the three move together over a day, a week or a month.

The moon is below the horizon here right now (-17.7°). When it rises, and tonight's phase →

The sun is up, low in the sky. Altitude is how far above the horizon the sun sits; azimuth is the compass bearing to look along, measured clockwise from north. Shown for 8:25 PM; this updates to the live position when the page loads.

Sunrise & sunset tomorrow in Riverton

Sunday, August 9, 2026

Sunrise tomorrow6:33 AM
Sunset tomorrow8:35 PM
Daylight tomorrow14 h 1 m

Tomorrow in Riverton the sun rises at 6:33 AM and sets at 8:35 PM — 14 hours 1 minute of daylight, 2 minutes shorter than today. Recomputed in your browser, so it is always the next day from now.

Twilight, golden hour & blue hour

Morning
Astronomical twilight4:46 AM – 5:26 AM
Nautical twilight5:26 AM – 6:02 AM
Civil twilight6:02 AM – 6:32 AM
Blue hour6:02 AM – 6:14 AM
Golden hour6:14 AM – 7:10 AM
Evening
Golden hour7:58 PM – 8:54 PM
Blue hour8:54 PM – 9:06 PM
Civil twilight8:36 PM – 9:06 PM
Nautical twilight9:06 PM – 9:43 PM
Astronomical twilight9:43 PM – 10:22 PM
Tonight's moon: Waning crescent, 18% lit — rises 1:30 AM, sets 5:45 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 86:32 AM8:36 PM14 h 4 m−2 min
Tomorrow Sun, Aug 96:33 AM8:35 PM14 h 1 m−2 min
Mon, Aug 106:34 AM8:34 PM13 h 59 m−2 min
Tue, Aug 116:35 AM8:32 PM13 h 57 m−2 min
Wed, Aug 126:36 AM8:31 PM13 h 55 m−2 min
Thu, Aug 136:37 AM8:30 PM13 h 52 m−2 min
Fri, Aug 146:38 AM8:28 PM13 h 50 m−2 min

Sunrise & sunset through the year

Longest day: June 21 — 15 h 4 m of daylight. Shortest day: December 22 — 9 h 16 m.

Daylight & seasons in Riverton

What time is sunrise tomorrow in Riverton, UT?

Tomorrow (Sunday, August 9, 2026) the sun rises at 6:33 AM in Riverton and sets at 8:35 PM, giving 14 hours 1 minute 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 Riverton, UT today?

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

CityRiverton
StateUtah
CountryUnited States
Time zoneAmerica/Denver — Mountain Daylight Time
UTC offsetUTC−6
Latitude40.5219° N
Longitude111.9391° W
Nearest major citySalt Lake City, UT — 17 mi north

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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