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Office of the Registrar

Student services

Office hours

Monday: 10 a.m. – 3:30 p.m.
Tuesday: 10 a.m. – 3:30 p.m.
Wednesday: 10 a.m. – 3:30 p.m.
Thursday: 10 a.m. – 3:30 p.m.
Friday: 10 a.m. – 3:30 p.m.

Join the line for drop in service.

Self service

Visit our Service Request page and Mosaic for more information.

Live chat hours

Monday: 10 a.m. – 6:30 p.m.
Tuesday: 10 a.m. – 6:30 p.m.
Wednesday: 10 a.m. – 6:30 p.m.
Thursday: 10 a.m. – 3:30 p.m.
Friday: Closed

Our online chatbot, MAC, is available 24/7.

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McMaster University is committed to fostering a respectful organizational culture in which all students, staff and faculty can learn, work and live in an inclusive and barrier-free environment that fosters equality, respect and accessibility. If you have an accommodation need for a planned meeting (virtual or in-person), please let us know directly through the live chat and we will do our best to make appropriate arrangements.