Digital Clock + Alarm Clock: √ It shows time in the digital format HH:MM:SS AM √ it shows the day in Month /Day /Year √ It has different bright colours √ it can be floating over your opening windows or your desktop √ it can be placed in anywhere on the screen Alarm clock : √ Set the Snoozing time for your alarm √ Choose Alarm alert sound √ It talks Create custom alarm alert by writing a message to listen to it as an alarm alert Like "John, Its time to save the world" "Its break time !" "Dont forget about the pizza !" Important : Digital Clock is like any other mac app that it cant be running and the mac is on sleep mode So to disable sleep mode : Go to System preferences -> Energy Saver -> Computer sleep:never and uncheck "put hard disk to sleep " option