Citadel Studios have added an Events Calendar page to the Shards Online website:

Our shiny new event calendar is now live. We currently have the schedule for our upcoming Community Round table and playtest events. It is set up so that you can copy each of the events to your calendar.

For our round table discussions the topics will be added to the event about a week a head of time. Playtest times may change so please keep an eye out on the calendar for any changes or updates.

You can access the Calendar directly at this link.