I want to create a zero operations alert by server (which I know how to do) but I need a time of day filter. I'm triggering alerts during business hours which is 5:30-11:00 M-F, but it is normal to see zero operations on some servers early or late in the day. If there are zero operations between 9:00-5:00 this is an issue. I do not want to get alert on the fringes of the business day in order to get one during core hours. Is there any way to add an additional time of day filter?