Calendario is a jQuery plugin that’s used for creating a responsive calendar.

Calendario is a pretty elaborate plugin as it has more options than I care to name, and works in two ways on different devices — one being using a grid-like look of the calendar, the other simply stacking days on top of one another if the screen is too small.

Altogether Calendario looks like the prettiest from the other calendar plugins out there, however, it does seem to miss features prevalent in other calendars. For example, you cannot attach it to input elements.

Zebra_Datepicker is a lightweight (11kb minified) date picking plugin written on jQuery.

This date picker is small and easy to implement. The vanilla design blends well with b&w or gray-ish designs, and it’s not a pain to fix it up.

Zebra is surprisingly simple and works great for in-site search engines or anything else. It also adapts well to different browsers and customizing isn’t a pain.

P.S. PHP programmers will love it, as Zebra’s date formatting borrows much from php’s date().

Verbose Calendar is a calendar plugin for jQuery that prints out the whole year in months and days.

Verbose Calendar can be used for event planning in companies, or even an OCD-driven to-do list.

Puns aside, this plugin is quite peculiar, but placing the nuts and bolts are left up to you as this Calendar ships with but a few events.

mobiscroll is an awesome JavaScript date/time picker for mobile devices.

mobiscroll features numerous themes (iOS, Android, Sense UI and others) that make date-picking a pleasure for the user.

The picker can be styled with CSS, and it’s been tested (and works) on desktop browsers, too.

glDatePicker is a jQuery date picker, made by Gautam Lad (hence the glDatePicker).

For starters, glDatePicker allows using your own CSS, and weighs a mere 8 kilobytes — not much for such an advanced library.

You can also set ‘valid’ dates for the picker, allowing the user to only pick dates that are within a specific time period; callbacks are available, too.

Overall, glDatePicker is a great “calendar” plugin for any sort of web application.

FullCalendar is a thorough jQuery calendar plugin that can be integrated with Google’s calendar.

Amongst the most notable features of FullCalendar are support for dragging & dropping events; huge potential for customizability; and support for events.

You can customize the date&time format for localizations, connect FullCalendar to Google Calendar, and so forth.

FullCalendar is available under the generous MIT & GPL licenses.