How to display 2 digits of remaining time number [jquery countdown]?

You can add leading zeros and then use substr

to cut the string to the length you want:

day = ("00" + day).substr(-2);            
hour = ("00" + hour).substr(-2);            
minute = ("00" + minute).substr(-2);            
second = ("00" + second).substr(-2);

      

        
        
        
      

    

The parameter -2

means that you want to take 2 characters from the end of the string.

Updated script