University of Toronto Student Web Services
Hours of Operation
Monday 12:15 am - 03:30 am
06:00 am - 11:45 pm
Tuesday 12:15 am - 11:45 pm
Wednesday 12:15 am - 11:45 pm
Thursday 12:15 am - 11:45 pm
Friday 12:15 am - 06:00 pm
10:00 pm - 11:59 pm
Saturday 12:00 am - 11:59 pm
Sunday 12:00 am - 11:45 pm


Occasionally, we may have to take this service down during published available hours for technical reasons. We try to keep these interruptions to a minimum and to give as much notice as possible.

If you are experiencing difficulty accessing the Student Web Service during normal hours of operation, it may be that the Service is experiencing an unusually high number of logins. Please try again in a few minutes.

ROSI is the legacy student information service at U of T and will continue to be available to students for several months, as the U of T community transitions to ACORN, ROSI's replacement.

Login to ROSI

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