'SSSSS' as date format mask simply means seconds elapsed from midnight. It doesn't mean any subseconds, the lowes granule of time with a "clasical" (pre-9i) date type is still one second. You can't get the current time displayed in a subsecond units with Oracle's DATE datatype. No way.
In the above example, 49998 only shows the number of seconds elapsed from midnight on the current day, which is exactly 01:53:18PM.
Jurij Modic ASCII a stupid question, get a stupid ANSI
24 hours in a day .... 24 beer in a case .... coincidence?