How long is a day on Venus?
Data as of July 2026
117 Earth dayssunrise to sunrise
A day on Venus lasts 117 Earth days from one sunrise to the next, even though the planet spins once on its axis every 243 Earth days. That is 117× an Earth day, and Venus spins backwards compared with most of the planets.
▶ Watch Venus turn in 3D
Why Venus's day is so long
Venus spins backwards, east to west, and so slowly that one turn takes 243 Earth days: longer than its 225-day year. Because its spin runs against its orbit, sunrise to sunrise comes round a little faster, every 117 Earth days. The Sun rises in the west and sets in the east.
Sunrise to sunrise
117 Earth days
One spin (against the stars)
243 Earth days, backwards
Compared with Earth
117× an Earth day
Venus days in its year
1.9
Its year
225 Earth days
Distance from the Sun
0.72 AU
Day length on every world
| World | Day (sunrise to sunrise) | One spin |
|---|---|---|
| Jupiter | 9 h 56 min | 9 h 56 min |
| Saturn | 10 h 39 min | 10 h 39 min |
| Neptune | 16 h 7 min | 16 h 7 min |
| Uranus | 17 h 14 min | 17 h 14 min (backwards) |
| Earth | 24 h 0 min | 23 h 56 min |
| Mars | 24 h 40 min | 24 h 37 min |
| Pluto | 6.4 Earth days | 6.4 Earth days (backwards) |
| Venus | 117 Earth days | 243 Earth days (backwards) |
| Mercury | 176 Earth days | 58.6 Earth days |
Earth's spin, against the stars, takes 23 h 56 min; the extra four minutes to a 24-hour day come from Earth moving along its orbit while it turns. On Venus the same effect is enormous.
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✓ Facts verified July 2026
Every figure on this page is a real, rounded value checked against primary sources. Found something out of date? See how we keep it accurate.