Date AddHours

by rafmaz

JavaScript

Date.prototype.addHours = function(h) {    
   this.setTime(this.getTime() + (h*60*60*1000)); 
   return this;   
}
Date.prototype.addHours2 = function(h) {    
   this.setHours(this.getHours() + (h)); 
   return this;   
}


var data = new Date();
data.addHours(-12);
alert(data);

var data2 = new Date();
data.addHours2(-12);
alert(data);