Be careful please! Entries are scheduled using in Coordinated Universal Time (UTC) but may be displayed in your local time zone. Look at individual calendar entries to be certain – downloading events to your calendar is helpful. To check, here is a time zone calculator.
Tutorial #3, X3D4 Demos
November 11 @ 5:30 PM - 6:30 PM UTC
Did you check the time zone? We hope to see you there!