Useful date functions and statements

times.js

// midnight today
var today = new Date(new Date().setHours(0,0,0,0));

// midnight tomorrow
var tomorrow = new Date(new Date().setHours(24,0,0,0));

// date format: yyyy-mm-dd HH:MM:SS
function pad(n, width, z) {
	z = z || '0';
	n = n + '';
	return n.length >= width ? n : new Array(width - n.length + 1).join(z) + n;
}

formatDate = function(d) {
	var yyyy = d.getFullYear(),
		MM = pad(d.getMonth()+1, 2),
		dd = pad(d.getDate(), 2),
		HH = pad(d.getHours(), 2),
		mm = pad(d.getMinutes(), 2),
		ss = pad(d.getSeconds(), 2);
	return [yyyy, MM, dd].join("-") + " " + [HH, mm, ss].join(":");
};