As someone who has worked second shift a lot, I'm still trying to get into a daytime routine now that I'm retired. Having acid reflux doesn't help because I have to stay up a few hours after eating supper anymore. Working on the house and yard all this summer just keeps me up pretty late.
Hopefully I'll be on a daytime schedule by next season with the home maintenance largely out of the way. It's going to be mighty hard getting up early for centuries by then if I ain't.