Function to convert time (type chronometer - 4:57:13) to seconds.

Time Converter

function seconds(time) {
    
    var split = time.split(':');

    if (split.length == 1) {

        var seconds = split[0];
        //alert(seconds);

    } else if (split.length == 2) {

        var seconds = ((split[0] * 60) + parseInt(split[1]));
        //alert(seconds);

    } else if (split.length == 3) {

        var seconds = ((((split[0] * 60) * 60) + parseInt(split[1] * 60)) + parseInt(split[2]));
        //alert(seconds);

    }

    return(seconds);

}

//Call
seconds("3:25:57");