Calendar applications and to-do list managers are the best tools to keep your life organized. Using these applications accordingly you can make good use of time and schedule your daily routines and get reminders about important events ahead. There are many calendar applications both desktop and online based available.

Here in this post we are going to discuss about the best free calendar applications. The best calendar application can make your agenda in an orderly manner.

Google Calendar

Google Calendar is the most popular online calendar application used by millions of users. Like many other Google applications you can use this tool from anywhere, unlike desktop applications which only works on the computer that they are installed. Though Google Calendar is a web based application it features all the important functions like that of any desktop calendar application and more features are constantly been added. Many desktop calendar applications can also sync with Google Calendar to make your life easier by using desktop application at home and Google Calendar elsewhere.

Lightning

Lightning is a Mozilla extension Thunderbird a multi platform desktop application. You might have been using Thunderbird as an email client manager to manage your POP3 based email accounts. By installing this simple extension you can added powerful calendar application to the interface of Thunderbird. It features different modes of view (calendar view, tasks view) in tabs and you can set multiple alarms for a single event. It uses very less system resources such that you can save system resources to run your other programs.

iCal

iCal is a standard calendar application that comes with all Mac OS X operating systems. Using this application you can professionally manage your schedule and tasks without any effort. You can create multiple calendars so you can make a calendar for each purpose (work, home, collage, etc.). You can sync iCal with your iPhone or iPod touch to carry your schedule with your anywhere.