Ion.Calendar is a good jQuery calendar and datepicker plugin that actually based on a very powerful library to work with time – Moment.js. Let me just tell you more about this Ion.Calender jQuery plugin. It supports all the languages, parsing abilities, date formats much like Moment.js does. It is completely customizable via CSS. You can place this calendar wherever you want, because it’s flexible and can easily be placed within any content. You can add more than one calendars on a webpage because it supports multiple working calendars at one page. Ion.Calendar supports iPhone, iPad and touch-screen devices. Google Chrome, Opera, Mozilla Firefox, Safari, IE(8.0+). It is freely distributed under terms of MIT licence.