To sync with Google:
1. Go to Timeline.
2. Hit the blue "Add-to-Calendar" button.
3. Chose the Category you'd like to subscribe to.
4. Select "Google."
5. Hit "Accept" in the Google Calendar pop-up window.
6. Once the syncing is done, hit "View Now."
*Please, allow up to 10 minutes for all events to be synced with your calendar.
Here's a demo video on how to sync with Google Calendar: