The official CS 60 office and tutoring hours are posted at the link below.
Please remember that you are always welcome to set up a time to meet with Colleen outside of regular office hours, as well!
Questions posted to Piazza are e-mailed to all grutors and to the instructor(s), so that they can respond as quickly as possible. Classmates, too, may be able to help with concerns. Please make sure to submit your code in its current state if you have a question about it -- grutors and instructors can access it from the submission system.
The official CS 60 list of tutoring hours is available from this Google-doc spreadsheet
Tuesday 2-5pm in the LAC
or, email me to make an appointment...