Well the best bet then would probably be on the 5th of June I have an exam in the afternoon in which case I can battle between 8:30-12am my time which if that is good for you on that day could be good. Otherwise over the next couple of days I have morning exams so unless you can battle in your morning it will be complicated until the 5th.
I don't know how your mornings go, but I can play basically from 3-11pm my time tonight (which is 3am-11am for you) and then on scattered times the next few nights. 12 hour time difference + short deadline sucks