I want to sync m desktop calendar to my Android. I do not want to use Google facilities (I don't want google to own my data).

What are my options?

Depends on what other forms of local and remote storage options Android has. Which options does it permit?

I'm currently trying out a local funambol Server ans sync that with Kontact via akunambol. Works quite ok, though it is a bit annoying that you can just sync one ressource to funambol.