Don't you know Rainlendar2? It's the best calendar application for desktop. It works on Linux, Windows and Mac OS.
Check this out!!!
Now, you can have more layouts for Rainlendar2.
CHECK THE UP-TO-DATE page on deviantART
MoreCalendars addon for Rainlendar2
MoreStyle Mod addon for Rainlendar2
Sun-Moon information addon for Rainlendar2