javascript - How to add Time Timestamp to DateTime Timestamp? -

i having project have time duration service have converted strtotime , also, have datetime picker have converted strtotime, in data base, so, using calendar https://github.com/almasaeed2010/adminlte,

now, here problem, in calendar sample there code

 {                         title: 'long event',                         start: new date(y, m, d - 5),                         end: new date(y, m, d - 2),                         backgroundcolor: "#f39c12", //yellow                         bordercolor: "#f39c12" //yellow                     }, 

what trying accomplish service duration,let's duration 2 hours converted strtotime, how can add timestamp of datetime? these code , screenshot below, can see, result wrong since appoint_end 2 hours appointment displayed days,

events:     [     <?php $event_query = mysql_query("select * appointment,service,user appointment.user_id = user.user_id , service.service_id = appointment.service_id")or die(mysql_error());           while($event_row = mysql_fetch_array($event_query)){           $e = $event_row['appoint_date'];           $ee = $event_row['appoint_end'];           $eee = $e + $ee;     ?>     {         title  : '<?php echo $event_row['firstname'].' '.$event_row['lastname']; ?> ',         start  : '<?php echo $event_row['appoint_date']; ?>',         end: '<?php echo  $eee; ?>',         allday: false,         backgroundcolor: "#3c8dbc", //primary (light-blue)         bordercolor: "#3c8dbc" //primary (light-blue)     },     <?php } ?>     ], 

the start date ok, end, since added 2 hours service timestamp datetime timestamp, do?

php time function:

time();

<?php $nextweek = time() + (7 * 24 * 60 * 60);                    // 7 days; 24 hours; 60 mins; 60 secs echo 'now:       '. date('y-m-d') ."\n"; echo 'next week: '. date('y-m-d', $nextweek) ."\n"; // or using strtotime(): echo 'next week: '. date('y-m-d', strtotime('+1 week')) ."\n"; ?> 

this snippet of code returns:

now: 2005-03-30

next week: 2005-04-06

next week: 2005-04-06

refer php time() manual more information