<html> <head> <title>JavaScript setHours Method</title> </head> <body> <script> var dt = new Date(); dt.setHours( dt.getHours() + 2 ); document.write( dt ); </script> </body> </html>
Date.prototype.addHours = function(h) { this.setTime(this.getTime() + (h*60*60*1000)); return this; }