The source of this page item is database column TIME with a format of TIMESTAMP(0). Format mask of DD-MON-YYYY, default value of to_date(:"P5_TIME_TMP",'DD-MON-YYYY');.The ' "P5_TIME_TMP" ' in this expression doesn't seem right to me. Shouldn't it be just :P5_TIME_TMP? There may be other problems, but why not try this to_date(:"P5_TIME_TMP",'DD-MON-YYYY');. in SQL Workshop > SQL Commands to see what you get? Make it work there first.