The special theory of relativity lets every mass in the universe have its own clock. I have one, you have one and our nearest star has one, so matter only has the same time if it has the same speed. General relativity lets gravity alter time as well, as time slows down near a large mass like the earth. It takes a lot of computing to make satellite navigation work because the clocks of GPS satellites tick at a different rate from the receivers on the ground. If one day people lived on the moon, time would pass faster for them so they would age a tiny bit more because the gravity is less.
If time passes when quantum cycles complete, whatever slows down quantum cycles will slow down time. Gravity as a quantum processing gradient that diminishes with distance slows down the network accordingly so time slows as it increases. The matter of the earth superposes its existence on the quantum network around itself to alter time, so a clock on top of the Empire State Building will run faster than one at the bottom. Gravity slows down time, as Einstein concluded, but it acts on the quantum network not time itself as time is a result, not a thing that exists in its own right.
Would one live longer on a larger planet with more gravity? It might seem so to others but the quantum cycles experienced would be the same. Living on a larger planet stretches time relative to earth but it doesn’t change the lifetime one experiences.