Alarm is a Visual Basic custom control that lets you set multiple alarms to go off (i.e. fire events) at various times during the day. This control makes it easy to schedule events to happen at various times. Just set the properties and wait for Alarm to notify you.
Alarm even tells you when the date has changed. You can use this to remove all of the current alarms and set new ones for the day. A must if you're writing a Personal Information Manager.