The point is that you get significantly more 'drift' by just moving east or west within a timezone. No government is going to care if the local time at solar no

The point is that you get significantly more 'drift' by just moving east or west within a timezone. No government is going to care if the local time at solar noon at a certain location changes a few seconds over the years, given that the time at solar noon changes much more as you move throughout the timezone.