Rising time will depend on the temperatures and the environment that you are in.
Cooking time can slightly vary in your oven.
Leftover focaccia makes for great sandwiches, you can slightly warm it up in a low oven.
Focaccia also freezes well. Just place big pieces in a freezer bag, remove from the freezer about an hour before you want to eat it.
One last thing I'd like to say is that, when making focaccia or bread in general you should trust your instincts. You should feel the dough, caress it, give it love. And don't be put of if it doesn't come off perfect the first time.