Contacting the IT Service Desk Phone Service Desk Phone Number: (905) 721-3333 Mon to Thu: 7:30am to 6:30pm Fri: 7:30 am to 5:30pm Sat: 9:00am to 4:00pm Sun: CLOSED Email Service Desk Email: ServiceDesk@dc-ot.ca Mon to Thu: 7:30am to 6:30pm Fri: 7:30 am to 5:30pm Sat: 9:00am to 4:00pm Sun: Closed Emails are processed in the order they are received during our business hours. Response times may range from 1 hour to 72 hours, depending on volume. Delays are possible during peak periods. For urgent requests, please call or visit us in person. Live Chat Mon to Fri: 8:30am – 4:30pm Sat to Sun: Closed Walk-In Service Desk Hours North Oshawa Campus - SW100 Gordon Willey Mon to Thu: 7:30am to 6:30pm Fri: 7:30am - 5:30pm Sat & Sun: Closed Whitby Campus – Computer Commons Don Lovisa Mon to Fri: 7:30 am to 6:30pm Sat & Sun: CLOSED These hours exclude holidays. The Service Desk is closed on Stat Holidays. Computer Commons Hours Oshawa Computer Commons Mon – Thu: 7:30am – 6:30pm Fri: 7:30am – 5:30pm Sat & Sun: Closed Whitby Computer Commons The Whitby Computer Commons is accessible when the College is open.