The Call for Session for the ACCU 2017 conference was extended.
From the article
Now that the conference website is up and running, we are pleased to confirm that the deadline for session proposals has been extended until 2016-12-02T23:58+00:00. That’s a few minutes before the midnight (UTC and Europe/London) that ends Friday 2nd December 2016.
The full details are in Call for Sessions which has been updated to reflect the new submission deadline.