Turnitin services will be mostly unavailable during a scheduled maintenance period on Saturday, March 5, 2016 from 10 AM to 1PM EST (or 7 AM to 11 AM U.S. Pacific Time – event details and time converter are at Time and Date com).
This is the Saturday before Spring Break, but instructors should plan their deadlines and grading of Turnitin assignments around this maintenance window.
Progress can be monitored at the Turnitin Status Twitter feed at https://twitter.com/turnitinstatus.