Calendar provides an easy-to-use, robust interface for time management, scheduling, and planning. You can schedule events and tasks for yourself, as well as, track resources, create groups, and interact with other users. In addition, you can customize your calendar, track task progress, and work with attachments.
It takes just a few easy steps to add your Calendar to your Apple mobile device. Once you do, any events or tasks you add to Calendar display on the calendar application on your iPhone or iPad.