For those that are using the P8 FileNet products, specifically the Process Engine Process Administrator tool, may have the need to do a search based in dates values, like, for example, if F_StartTime is greater than yesterday.
The date format for using as the parameter is the following: MM/DD/YYYY HH:MM AM/PM
For example: 06/20/2012 15:00 pm or 06/20/2012 08:00 am
The Process Administrator then inserts the date value with the UNIX timestamp format on the search condition.
An online tool as: http://www.onlineconversion.com/unix_time.htm can be used to convert the values back and forth between formats.