To view the reminders that you have already set up,
Click on an entry either in one of the calendar views, or in the task list. The Edit Task, or Edit Event page will appear.
Scroll down to the Reminder section.
If a reminder has been set up the settings will be displayed here. If no reminder is set, the day, minute, and hour boxes will reflect the default settings of zero.
Changing E-mail Addresses For Reminders