I mostly TREND trade the Tokyo session between 9 & 10 Bangkok time. That gives me c.4 hours to open and close my entries before London summer time opens. My only trading days are Tuesday - Thursday, any major or minor currency pairs that are trending.
I avoid Friday as the big boys are placing and positioning their weekend trades, and repositioning on Monday, which I also mainly avoid, as the likelihood of a continuing trend is minimal, but not definitive.
IMO the London session has by far the best opportunities for trading, followed by NY opening times.