I made this for myself to get a better grip on the time that is passing. The domain name is derived from a quote by Emerson, which goes like this:
Guard well your spare moments. They are like uncut diamonds. Discard them and their value will never be known. Improve them and they will become the brightest gems in a useful life.
What else is there to say.. this was made in about 3 hours, because I have access to great open source work. The calendar is taken from this Github repository, but I have tweaked the code a little bit to suit my needs.
If you like, you can email me at lukas.zielinski@gmail.com.
Have a great day!