Today is now tomorrow.

This is short and quick. I just think it's crazy how now a days we run time based off a clock. A time system that humans decided to come up with. What happened to relying on the sun and moon? I feel like it's more consistent than us as beings trying to fixate day and night into a timeframe. The earth is spinning faster everyday they say.. so what happens when time goes from 24 hours to 23 hours? What then?