I like to separate remote and work from home. Remote is mostly async, timezones aren't that important (I have worked with both +10 and -9 without a problem) etc. Work from home is to try to mimics the office environment but distributed (work hours, daily calls, etc).

And when you mention just one hour timezone difference is a problem, I really do wonder how you deal with flexible work times, or you just expect 9-13, one hour break, 14-18 for everyone? Myself, and many others I know would refuse to work like that (I don't do lunch breaks as I don't have lunch, I prefer to get in late and work late as my brain is mush before 10am, Others that work with me seem to like to start as 7am and leave early)

You seem to want work from home developers to work like part makers in a factory.