Let AOL Calendar remember important dates and appointments for you by sending reminders to notify you of upcoming events. Set default reminders for your events and change them when you need to. When setting up two notifications for the same event, the second reminder (Again) should not be the same interval as the first reminder (Time), and should be made closer to the event than the first reminder.
Note - Changes to default reminder settings will only apply to events created after the settings were altered. You'll need to edit reminders for preexisting events individually.
Configure reminder settings
1. Click the Calendar icon 
in AOL Mail | click Calendar full view.
2. Click the Settings icon 
| select Calendar Options.
3. Click Reminders.
4. Select when and how you want to receive notifications.
5. Click Back to Calendar when finished.
Edit an event reminder
1. Click the Calendar icon in AOL Mail | click Calendar full view.
2. Click on an event | select Edit.
3. Next to the Reminder icon select when and how you want to be notified.
4. Click Save.