If u just take general estimates.........for arguments sake..........and say the earth......is 5 billion years old........rounding up........the universe is 20 billion............any alien culture.............assuming one.......or many..........and there are tons of them..........they would have a head start on us............

4.543 billion years

Earth, Age

Age of the Earth - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Age_of_the_Earth

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Rocks returned from the Moon have been dated at a maximum of around 4.4 and 4.5 billion years old. Martian meteorites that have landed upon Earth have also been dated to around 4.5 billion years old by lead-lead dating.

‎Development of modern geologic ... - ‎Early calculations - ‎Radiometric dating

How Science Figured Out the Age of Earth - Scientific American

www.scientificamerican.com/.../how-science-figured-out-the-age-of-the-earth/

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Editor's note: The following is the introduction to a special e-publication called
Determining the Age of the Earth (click the link to see a table of contents).