The best current estimate of the age of the universe is 13.75 billion years and earth formed 4.54 billion years ago. So the age of the earth is about a third of the age of the universe.
In the Quran Allah says: "Indeed, your Lord is Allah, Who created the heavens and the earth in six days..." (7:54) and "Say (O Muhammad): Do you verily disbelieve in Him Who created the earth in two Days?"
According to these verses the age of the earth is also a third of the age of the universe. General relativity explains why 6 days passed at God's Throne but we measured it as 13.7 billion years as time passes slower near bigger mass.