note 106727 added to ref.datetime

can someone know how to get the number of hours and minutes of a two set of time like this sample. 1st set of time : 8:00 to 17:00 2nd set of time : 9:00 to 18:00 range of time : 8hrs another sample 1st set of time : 20:00 to 4:00 2nd set of time : 22:00 to 6:00 range of time : 6hrs please can someone help me. ---- Server IP: 69.147.83.197 Probable Submitter: 124.105.17.15 ---- Manual Page -- http://www.php.net/manual/en/ref.datetime.php Edit -- https://master.php.net/note/edit/106727 Del: integrated -- https://master.php.net/note/delete/106727/integrated Del: useless -- https://master.php.net/note/delete/106727/useless Del: bad code -- https://master.php.net/note/delete/106727/bad+code Del: spam -- https://master.php.net/note/delete/106727/spam Del: non-english -- https://master.php.net/note/delete/106727/non-english Del: in docs -- https://master.php.net/note/delete/106727/in+docs Del: other reasons-- https://master.php.net/note/delete/106727 Reject -- https://master.php.net/note/reject/106727 Search -- https://master.php.net/manage/user-notes.php