For datetime spans in time-filtered search results, anything less than 7
characters or more than 15 can be guaranteed to not be properly
formatted dates (either "mm dd yyyy" or "xx days/months/weeks ago")
Was previously checking for non-inclusive max number of days (i.e.
filtering by past month would return a failed test if the result was
from exactly 31 days ago)
Ben Busby
Ben Busby