Is that practical? Drift is slow and takes 1 min per century. Let’s say you can live with 10 minutes of drift. That leaves minutes [10-50] which is 4 centuries vs minutes [50-10] where it’s fine which is 2 centuries.

Also, if the problem were time zones, time zones already support non-whole hour shifts, so why not just apply the leap second into all time zones? The reason is that that isn’t what a leap second is. It’s kind of “how much time has elapsed since 1970 midnight” and that number is corrected for with leap seconds. Time zone offsets don’t help you here.