ZhClock2D

The Key

Wake up to Justin Bieber with his official alarm clock app

Alarm Clock Xtreme: Alarm Reminders Timer Free

A free app for Android, by Angle Labs

LokOS app

App for managing self-help groups

Stopwatch and Timer APK

Keep track of time down to fractions of a second for free 

Alarm Clock Ultra Free

Set an alarm clock with customized options, such as your own voice or music 

Despertador Xtreme