var hms = '02:04:33'; // your input string var a = hms.split(':'); // split it at the colons // minutes are worth 60 seconds. Hours are worth 60 minutes. var seconds = (+a[0]) * 60 * 60 + (+a[1]) * 60 + (+a[2]); console.log(seconds);
var hms = '02:04:33'; // your input string var a = hms.split(':'); // split it at the colons // minutes are worth 60 seconds. Hours are worth 60 minutes. var seconds = (+a[0]) * 60 * 60 + (+a[1]) * 60 + (+a[2]); console.log(seconds);