*Points at the PBEM part of the topic* I hate TCP/IP with a passion, so if I am in, chances are it is PBEM.
(And if I host it, it *is* PBEM)
Panther has played the current turn, so you don't have to play it yourself. Otherwise, it's one turn every two days, with turns running at 1900 GMT, so you would still have plenty of time (we almost always use the full 48 hours these days, or 40 of them at the very least).
If, for one reason or another, you cannot play the turn in time but warn me, I will extend the deadline by 24 hours automatically; further delays are usually left to the approval of the other players, or to how I feel, or to the gravity of the situation (there is quite a difference between "I'm not playing because I love to make all the other players mad at me" and RL issues).