Okay, got the computer problems fixed so I should be pretty available. I'm GMT +1, I can't really do it tomorrow but I will update this post with my schedule for the week later. In general, I'm open Thursdays and weekends.
EDIT: Okay so on Thursdays I have tests and sometimes I don't and the length of which decides when I get home. If I don't have tests I get home around 1:30 PM, if I do it could go all the way to 7:00. This week I have a short easy one so I'm guessing around 4:30 PM. Fridays I get home around 4:00 PM. Saturdays and Sundays are pretty much open all day, except Sunday mornings and Saturday nights, unless I'm doing something special. Let me know what times work for you and we can set something up.