Days on the Sun.

The Sun is a massive ball of hot, glowing plasma and is not a solid surface like Earth. Therefore, it doesn't have a day-night cycle like planets with solid surfaces do. However, the Sun does rotate, but it's not a uniform rotation. Different parts of the Sun rotate at different speeds. This phenomenon is known as differential rotation.

At its equator, the Sun's rotation period is about 25 days, while at its poles, the rotation period is around 35 days. These values mean that it takes about 25 days for a spot at the equator of the Sun to complete one full rotation, while a spot near the poles takes about 35 days to do the same.

It's important to note that these rotation periods are approximate and can vary over time due to the complex and dynamic nature of the Sun's internal processes. Additionally, the Sun's rotation is not like the simple rotation of a solid body; it involves complex movements driven by the behavior of plasma and magnetic fields in the Sun's interior.