During the French Revolution they tried to create metric time units, but it didn’t stick.
The one thing I think is possible within our lifetimes is getting rid of time zones. Instead of a business being open from 9:00 EDT to 17:00 EDT it could just be 13:00 UTC to 21:00 UTC. Then it’s much easier to schedule things with people in other parts of the world. China is already kind-of doing that, the entire country is on China Standard Time, even though it’s a huge country. That means that the sun is directly overhead at approx 3PM CST in the far west, and at the equinox the sun will rise at about 9am and set at about 9pm.