What is the name of the sun god in ancient Greek myths?

In ancient Greek myths, the name of the sun god is mentioned, his name was Helios. People believed in his power, which illuminated the Earth. If you read the myths, you can understand what kind of work Helios did. He got up early in the morning to go around the whole earth in his chariot. To speed the chariot faster, he harnessed fiery horses. After his work, Helios sank into the ocean. He did his job every day. People celebrated the feast of the sun god and Zeus on the same day.