Hi Douglas
I do not really understand what ORS means.
But as per the IBM Introduction and planning guide for version 8.4.1 :
Content Manager OnDemand supports date values in the range of January 1, 1970 to December 31, 2069. OnDemand also supports a date/time field. A date/time field can contain date values from January 1, 1970 to December 31, 2038.