Is there any lightweight JavaScript date picker?

I faced the same issue with the official jQuery example (see my comment above). I isolated the problem to CSS themes and started stripping away junk. Before I finished I found a guy had done exactly what I needed: http://keith-wood.name/datepickBasics.html

It required DatePicker.js and a single CSS file. All told 2 HTTP requests and 40 kB in addition to the basic jQuery file everybody should have cached like Darin says.

I just came across Pikaday, which looks good and is quite lightweight (around 11kb of JS, minified). Doesn't require jQuery either.

Here's a demo.

A screenshot of the picker:

_{(source: github.com)}

Example using pikaday with timepicker and moment.js

<link rel="stylesheet" href="/pikaday/css/pikaday.css">
<script src="/pikaday/moment.js"></script>
<script src="/pikaday/pikaday.js"></script>
<script>
var timepicker = new Pikaday({
    field: document.getElementById('datetimepicker'),
    firstDay: 1,
    minDate: new Date(2016, 0, 1),
    maxDate: new Date(2100, 12, 31),
    yearRange: [2016,2100],
    showTime: true,
    autoClose: false,
    use24hour: false,
    format: 'MMM Do YYYY, h:mm a'
});
</script>

github.com/owenmead/Pikaday

momentjs.com