This javascript function takes a human typed amount of time (like "1 hour 30 mins", or "1.25 hours and 3 seconds") and converts it into a number of seconds for easy programmatic manipulation. Couldn't find it anywhere, so I made it.

parseTimeAmount.js

function parseTimeAmount(stime){
    var tokens = stime.split(/\s/);
    var seconds = 0;
    for(var i = 0; i < tokens.length; i++){
        var quantity = parseFloat(tokens[i]);
        if(!isNaN(quantity)){
            i++;
            if(/sec/.test(tokens[i])){
                seconds+=quantity;
            }else if(/min/.test(tokens[i])){
                seconds+=quantity*60;
            }else if(/hour/.test(tokens[i])){
                seconds+=quantity*60*60;
            }else if(/day/.test(tokens[i])){
                seconds+=quantity*60*60*24;
            }
        }
    }
    return seconds;
}