[wildzzz]

I specifically give people a time somewhere in the middle of a window in which they could arrive that neither disturbs my preparations nor disturbs the schedule I've devised. Everything may not be exactly ready at the beginning of that window but any preparations left to do can be performed while socializing (finish making appetizers, for example).

It also depends on who my guests are. If I know they are consistently late, I give them an earlier time. If they are always early, I give them a later time.

My grandfather was overly punctual. He'd show up 30-60mins early for dinner and my mom hated it. My mom loves hosting people but she can't do that while she's blowdrying her hair or helping her children get ready. So she would tell him a different time than everyone else coming over so he'd show up when everyone and everything was ready.