Free calendar and day planner software for windows

Get your Yahoo!, iCal, Outlook or Sunbird Calendar events and tasks right on your desktop.
If youre using Yahoo! Calendar, you have the ability to add, edit and delete events directly from your Widget.
Part of the Yahoo! Widget Engine installation, but offered here in the event youve lost the Widget.

Maxthon add-on that will show you your events from the Google Calendar in the browsers sidebar Google Calendar Maxthon Plugin is a plugin that will show you your Google Calendar events in the browsers sidebar. You can view the events for today, tomorrow and the recently modified events.You can also add, edit and delete events, and view the events for any day, using the month calendar.
System requirements:
- Maxthon

BrainStorms free Diary generator creates a diary or calendar file for any year from 1753 to 2199. You can even use it just to see what day of the week historical events fell on.The program writes details of each year as a tabbed outline text file or as a BrainStorm file for use within the BrainStorm ideas organiser program. The file structure is Year, the month headings, then days of the week. Each date can be formatted in a wide variety of ways and the start day of the week can be colour highlighted when outputting as a BrainStorm file. Its ideal for diary, calendar, year planning and for recording past and future information. The BrainStorm shareware is a perfect way to add information to the diary, as well as being an exceedingly useful information gatherer/organiser/publisher in its own right.The diary generator downloads as a .exe file so no installation is required.

Teachers Lesson Planner 1.1 is created to be a handy and convenient program which gives you the ability to plan lessons in detail and print out lesson plans. Overviews can be seen either by day or by group. This is the first version which is basically freeware.

This is a Day Planner / Calendar Widget. Originally, I started developing it as I wanted a big calendar where I could see several months at a glance (up to 12 months in this version) but it evolved into something more complex with possibility to add events and "to-do" tasks.
In its most compact form, the Widget simply displays your to-do tasks one after the other in a small bar.
Expand this bar to see the list of tasks and to edit / delete them. Click on the "C" button to open the calendar.
You can then add an event by double-clicking on a day.
More options are available when right-clicking the Widget.
Two skins are currently available.