Helen, I do believe it would be -5 hours. But don't go on my word for authority! If it's +5 hours it would be awful to get on around 10 pm GMT, would it not? Those wee sma' hours.
Seeing as most are available around 10 p.m. GMT, I'll say I'm free then, too, from then to whenever it's over or I'm pressed to leave. Except Saturdays... I'm free at 10 p.m. GMT on Saturdays, but only for a little while.
But I don't have YIM. Where can I get it, or will I need to install it at all?
I don't know if I'd be absolutely necessary for the confrontation, but I want to spy on you anyway.