Set a date and time to countdown to. You can set a website for the speeddial to link to. It will also show the website in the background of the website (it's a live view of the website which updates when you open opera)
Use it to remind your of film releases, your dad's birthday, to take the eggs out or whatever you like!
(And if you're into coding, why not have a look at how it's put together: https://bitbucket.org/akademy/speeddial-countdown/overview )
- This extension will appear in Speed Dial.