Jujuba Software Clock combines 4 useful tools in one app:

• Calendar clock that changes high-resolution background every month. One way to enjoy this app is to keep it running while your Windows 8 device is docked on your desk
• Precision stopwatch clock
• Timer clock that keeps ticking even when app is moved to the background. Can easily be used as a cooking timer
• Alarm clock configurable with up to 5 color-coded alarms with customizable sounds.
• Shows current time and set alarms in live tile clock