Is the moon older then the sun or earth?

None. Both the sun AND earth are older than the moon.

No. It appears that the Moon is slightly younger than the Earth. Current theory for its creation is that an object, a protoplanet about the size of Mars called Theia, struck the Earth during its early formation, ejecting matter that consolidated into the Moon.

The Sun is older than both the Earth and Moon, but only by a small amount.