Canvas announced a maintenance for their live chat support on 9/25/2016 starting at 12:00AM and ending at 12:30AM. For more information their original message is below.
Live Agent maintenance event scheduled on 9/25/2016 at 12:00 AM MDT (6:00 AM UTC)
Hi Admins —
The Live Agent tool our support team uses to chat with your users will be undergoing maintenance on Sunday, September 25th from 12:00 AM (6:00 AM UTC) to 12:30 AM (6:30 AM UTC). The chat service will not be available during this time, but our support team will be standing by to accept phone calls and cases submitted over the web or through Service Cloud.
Thanks for all you do! It’s a privilege to work with you and your users.
– LMS Team