Cuckoo is a simple alarm application that is designed specifically for Ubuntu.
Cuckoo allows users to open and save alarm lists for easy alarm management. Cuckoo also allows you to hide the window from your Unity launcher to stay out of your way while you work.
Cuckoo supports the Ubuntu Unity Launcher, HUD, and Indicator interfaces which allows for you to control Cuckoo faster. With this support, you can interface with Cuckoo in the way that best suits you.
Cuckoo utilizes the powerful GStreamer media framework to play the your media files. As a result, Cuckoo will play any media file that you can play in programs like Rhythmbox or Totem (Movie Player)
Install Cuckoo Alarm Clock:
Ubuntu 12.04 user can download .deb package of Cuckoo from this page.
Or use following commands to install from PPA:
sudo apt-add-repository ppa:john.vrbanac/cuckoo
sudo apt-get update
sudo apt-get install cuckoo
Cuckoo on Unity launcher:
Cuckoo website: www.verticalcue.com/apps/cuckoo