Reddit /dailyprogrammer challenge from Feb 09, 2015.

countdown-feb.js

module.exports = function(input) {
	//take input string and parse to a date object.
	var targetDate = Date.parse(input);
	
	//figure out the current date, in a date object
	var todaysDate = Date.now();

	//find the difference between the two dates
	var difference = targetDate - todaysDate;
	

	//convert the difference to days.
	/* 	Round up to include today as a "day," i.e. it's 
		one day until tomorrow, even though it's represented
		as a few hours. */

	difference = Math.ceil(difference / 86400000);
	todaysDate = todaysDate.toString();
	

	return difference + " days from 2015 2 16 to "+input;


};