By default a query will return the last available results for your indicators. Note that "overdue" is also considered a result here.
The "Time" tab will allow you to modify the default setting:
"as of": Your query will retrieve all results that are active at the specified time. A query as of "Month" / "Year" will retrieve all records that had a reporting requirement in, or before that month.
"ending at": Your query will retrieve only those records that actually have a reporting requirement in that particular month.