c1dd7be8_Notes_Search_Modifiers_Filters__Description
[Windows Property] System.DateModified [Example(s)] datemodified:yesterday [Note Source Item] Is either “DeliveredDate”, “PostedDate” or the modification date of the note when it was last indexed [Description] 
This is used to find the most appropriate date to display
NotesConnectors.com: EZ Notes Search Modifiers/Filters
Description