Rise Alarm Clock!

Smart alarm clock that includes many improvements over the stock alarm clock. It does not have dock mode or world clock features.

Timeless is a unique clock and calendar (from the creators of Rise, an Apple App Of The Week, featured in Mashable, Fast Company, The Verge, and many more). Timeless visualizes the simple momentum of changing time through beautiful colors and movement. Prop it up on your desk and watch the day build away. View with or without labels for a unique visualization and conversation piece.

Alarm DJ is an online alarm clock that plays your MP3 files and YouTube videos of your choice.It supports Chromecast which means you can turn your TV or stereo system into an alarm clock.

PerfectClock is a skinnable, flexible, fast and highly customizable program displaying an unlimited number of World-Time clocks on your desktop.