Time.is - exact time in any location
Alarmy - World's most annoying alarm app
timeanddate.com - Free Clock for your website or blog!
Galarm - Social alarm clock and reminders
Every Time Zone - Online tool for keeping up with times around the world.
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.