As a side question, do people find that the length of their sessions (if they game less frequently than once a week) increases a little?
Our group assembles on a Saturday between 3:00 and 4:30ish or so. That irregular assembly time as people arrive and trickle in is for socializing and chit-chat. We then begin gaming, ideally, at about 5:00 p.m. and play through to Midnight most sessions. (we break for pizza for 30 mins or so at 7:00-8:00 ish).
I have my Sunday fortnightly Meetup sessions scheduled 12:30-5:30pm, I try to be there a little early to set up and chat with those who arrive on time, and there's around 15 minutes packing-time after the game (I'm usually in a hurry to get home though so not much socialising). Not everyone is punctual but I get pretty annoyed if they're not there by 1pm and playing by 1:15, latest. I couldn't stand it if people were filtering in over a two hour (or more!) period, that'd be half my game time gone! Off-topic, there seems a big difference in attitude to timetabling for social occasions like parties between the Americans (certainly the Texans) I know and the Brits. The Brits turn up maybe half an hour after the scheduled time, any more can be considered rude. The Americans turn up 2 1/2 hours or more after the scheduled time. Most of the American D&Ders I know are reasonably punctual though, maybe they don't count D&D games as parties.
Edit: Having 7 players currently is nice because I can start the game once 5 turn up, hopefully the latecomers arrive before anyone gets killed... >
