Adding hours to JavaScript Date object?

Question

It amazes me that JavaScript\'s Date object does not implement an add function of any kind.

I simply want a function that can do this:

var now = Date         


        

Answer 1

I also think the original object should not be modified. So to save future manpower here's a combined solution based on Jason Harwig's and Tahir Hasan answers:

Date.prototype.addHours= function(h){
    var copiedDate = new Date();
    copiedDate.setTime(this.getTime() + (h*60*60*1000)); 
    return copiedDate;
}