You can't fix the problem you're describing by fiddling with time standards. Even before timezones became a thing, people started waking up to get to work at a

You can't fix the problem you're describing by fiddling with time standards. Even before timezones became a thing, people started waking up to get to work at a fixed time of day. What changed things was the need for everyone to be at a workplace at the same time to be productive (factories mostly).