A free app for Android, by Sevenlogics Inc..
You can now count down to your events with Countdown Widget! This handy app will show you the exact time for any kind of event, such as a birthday, anniversary, or holiday. It’s so easy to use, even if you don’t have any idea about how to make a countdown. Just install this app, set the event, and it’ll be done! You can set the units to count down in, such as years, months, days, hours, minutes, or seconds. There’s even a option to count down to your anniversary! You can set the countdown style to any way you want.