I configured a Office 365 query action to return items filtered by a date range. The filter criteria was simple, give me everything with a [eventdate] greater then or equal to [UserEnteredStartDate] and [EventDate] less than or equal to [UserEnteredEndDate] but I got zero result. After investigating I determine that the date format returned in the Office 365 query action was "yyyy-MM-dd h:mm AM/PM" and the format in the current list item date/time field was "M/dd/yyyy h:mm AM/PM" and that was why the filter criteria did not work. By entering a date range with the expected format, I get results. I will post a link to my blog explaining my work-around to this issue but wanted to ask, why is the date format used in the Office 365 query list action different from that in a date/time field value in Office 365? and is there a way to tell this action what format to expect/process when configuring the action?