The Microsoft Outlook Calendar is the calendar and scheduling component of Outlook, and is fully integrated with e-mail, contacts, and other features. You can view a day, week, or month at once. With Calendar you can:
Create appointments and events
Just as you would write in a paper-based organizer, you can click on any time slot in the Outlook Calendar and begin typing. New gradient colors makes it easy to quickly see the current day and time. The current time is highlighted with color only in the Day and Work Week views. You can opt to have a sound or message remind you of appointments, meetings, and events, and you can color items for at-a-glance identification.
Simply select a time on your Calendar, create an appointment, and select people to invite. Outlook will help you find the earliest time at which all the people are free. When the meeting notice is sent to invitees by e-mail, each will receive a meeting request in Inbox. When they open it, Outlook notifies them if the meeting conflicts with an existing item in their Calendar, and they can accept, tentatively accept, or decline your meeting by clicking a single button. If allowed by you, as meeting organizer, invitees can counter-propose an alternate meeting time. As organizer, you can track who has accepted, declined, or counter-proposed times, simply by opening the meeting.
View group schedules
You can create calendars that show the schedules of a group of people or resources simultaneously. For example, you can view the schedules of all people in your department, or all resources, such as conference rooms, in your building, to more quickly schedule meetings.
View calendars side-by-side
Link to calendars on Windows SharePoint Services sites
If you have access to a Microsoft Windows SharePoint Services site, you can view the events lists from that site in your Outlook Calendar. These items will be kept up-to-date and can be viewed side-by-side with other personal or shared calendars.
Manage another user's calendar
With the delegate access feature, one person can use his or her own copy of Outlook to easily manage another person's Calendar. For example, an administrative assistant can manage the Calendar of a manager. When the manager designates the assistant as a delegate, the assistant can create, move, or delete appointments and can organize meetings on the manager’s behalf.