Hi, when do you want to play for WCOP? I'm in the UK (GMT+1) and can play pretty much any time of the day (tend to get up earlyish, like 8am atm), but my room is north-west facing, so it gets pretty hot late afternoon onwards until the Sun goes down.
I'm playing giara 27th June, Colchon 29th June, so a day or two after that would be good, to try to stay in the right frame of mind.