SYDNEY (Reuters) - Asian markets marked time on Thursday with two major centres - Japan and China - shut for holidays while the dollar held on to overnight gains after the U.S. central bank poured cold water on rate cut expectations.Australian shares slipped 0.7 percent while New Zealand was up 1.2 percent and South Korea's KOSPI index added 0.4 percent.E-Mini futures for the S&P 500 were unchanged. In early European trades, the pan-region Euro Stoxx 50 futures were down 0.23 percent at 3,444,..