Loxi - Easily add an events calendar to any website.
Alarmy - World's most annoying alarm app
Whenever - Casual calendar app for iOS
Galarm - Social alarm clock and reminders
Future - Calendar events around the clock
Alarm Clock Xtreme - Alarm Clock Xtreme: Alarm, Stopwatch, Timer (Free) is the most popular alarm clock app created and published by AVG Labs for both iOS and Android devices.