Difference between two times in format (hh: mm: ss)

Question

I have two times, let say:

t1= \'05:34:01\' ;
t2= \'20:44:44\' ;

I want two evaluate difference between these two times in same format. Li

Answer 1

try this

function time_diff(t1, t2) 
{
  var t1parts = t1.split(':');    
  var t1cm=Number(t1parts[0])*60+Number(t1parts[1]);

  var t2parts = t2.split(':');    
  var t2cm=Number(t2parts[0])*60+Number(t2parts[1]);

  var hour =Math.floor((t1cm-t2cm)/60);    
  var min=Math.floor((t1cm-t2cm)%60);    
  return (hour+':'+min+':00'); 
}

time_diff("02:23:00","00:45:00")