why time is considered to be just a parameter in non-relativistic quantum mechanics

why time is considered to be just a parameter in non-relativistic quantum mechanics,even though energy-time uncertainty is well defined in non-relativistic quantum mechanics?[sudhakaran gopalan,also known as g.sudhakaran,7/M.Sc./PHYSICS/1964 OF IIT,MADRAS,is the author of gr-qc/0106029 in xxx.lanl.gov]

http://answers.yahoo.com/question/index?qid=20120804095152AAEH9PZ

AN ORDERED MATHEMATICAL FIELD IS ISOMORPHIC TO REAL NUMBER FIELD