| Planet | Length of Day (hours) |
|---------------|------------------------|
| Mercury | 1,407.5 |
| Venus | 2,802 |
| Earth | 24 |
| Mars | 24.6 |
| Jupiter | 9.93 |
| Saturn | 10.7 |
| Uranus | 17.2 |
| Neptune | 16.1 |
Important Notes:
* "Day" is tricky: "Day" can refer to two things:
* Rotation period: The time it takes a planet to spin once on its axis (like Earth's 24 hours).
* Solar day: The time it takes for the Sun to appear in the same position in the sky.
* The table lists the rotation periods. The solar day can vary, especially for planets with tilted axes like Mars.
* Venus is an outlier: It rotates incredibly slowly and in the opposite direction of most planets!
Let me know if you'd like more detail on any specific planet's rotation or solar day.
