the sun's age is 4,600,000,000 years old
The sun is constantly aging every second as we speak. The trillions upon trillions upon trillions of hydrogen molecules inside the sun's core are constantly colliding to make helium, and the sun ages...
The Sun is middle aged it formed 4600 million (4,600,000,000) years ago and will shine for another 5400 million years.
4,600,000,000 years.
More helium, less hydrogen.