Big Day Countdown is a menu bar app that helps you countdown the time to that special day on your life. After launching the program, a small circular icon will appear on your menu bar. You need to click on the icon and select "Preferences" to configure your countdown. The tool features counting down to a specific time of the day and a detailed countdown that shows the exact time passed/left till your event, down to the minute. The utility may be displayed as a floating window that will appear on top of other opened windows.