Not quite: ora1025.scott> select to_date('2011-05-24T23:21:30.000Z','YYYY-MM-DD"T"HH24:MI:SS.FFF') from dual; select to_date('2011-05-24T23:21:30.000Z','YYYY-MM-DD"T"HH24:MI:SS.FFF') from dual * ERROR at line 1: ORA-01821: date format not recognized On 2011-06-09, at 6:12 PM, Gus Spier wrote: > Ooops! I should have checked: that format string should be > 'YYYY-MM-DD"T"HH24:MI:SS.FFF'