I recently bought an Android phone. I do not want to give <i>anyone</i> my calendar data. However, I want to synchronize my calendar across devices. So I did it. <a href="https://blag.nullteilerfrei.de/2014/01/23/synchronize-droid-and-thunderbird-calendars/#more-2406" class="more-link">Do you want to know how I did it?</a>