The Earth doesn't spin around the sun. It orbits the sun.

It takes approximately 365.25 days for the Earth to complete one orbit around the sun. This is why we have a year.

Here's how to think about its speed:

* Average orbital speed: The Earth travels at an average speed of about 67,000 miles per hour (107,000 kilometers per hour) as it orbits the sun.

* Variable speed: The Earth's orbital speed isn't constant. It moves faster when it's closer to the sun and slower when it's farther away.

Let me know if you have any more questions!