My busy time duration's in a day are 08:30-12:00, 13:00-17:15. If any of my time duration is intersect at database time duration like 17:00-22:00, then do not show any mysql query result. But any of my time duration do not intersect at database time duration like 18:00-22:00, then show mysql query result.
Or, how can I get same result in php code.
