ORA-01818: 'HH24' precludes use of meridian indicator
Cause: A date specification contained both a 24-hour time format code and a meridian indicator code. If hours are specified using the 24-hour time format (HH24), a meridian indicator, AM or PM, may not be specified.
Action: Remove the meridian indicator format code, AM/PM or A.M./P.M., or the 24-hour time format code, HH24, from the date specification.