FullCalendar is a jQuery plugin that provides a full-sized, drag & drop calendar. It uses AJAX to fetch events on-the-fly for each month and is easily configured to use your own feed format (an extension is provided for Google Calendar). It is visually customizable and exposes hooks for user-triggered events (like clicking or dragging an event). Supports jQuery UI Themes.
wdCalendar is a jQuery based Google calendar clone. It cover most Google calendar features. You can integrate it with a database and can have daily, weekly or monthly views. Events can be created, updated or removed by using drag & drop operations.
Latest Version – iCal-like-calendar
So the next time you are looking out for a free jQuery Calendar plugin for your website, I hope this post will help you find one.
You can also check my posts on the jQuery UI DatePicker