So I have a date field in an Order content type, and a view including an exposed grouped filter for a Date with buttons for early morning, mid-morning, noon, etc. I need to modify this filter so that picking one of these buttons shows all Orders with times within the specified fields. For example, if they choose evening, then all Order nodes with dates containing time between 6:00 PM and 10:00 PM show. I've tried the hh:mm format, but I get no results. The year, month, and day need to be irrelevant, all that matters is the time.