Winter 2027 Booking Windows & Schedule of Classes Are Now Available in TSS! |
Winter 2027 booking begins November 9! See details below.
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Your booking window is now available in the Triton Student System (TSS)! Please note that all booking window assignments are final and cannot be changed.
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Booking Window Appointments |
To view your booking window start times, follow these steps:
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- Log in to TSS at sis.ucsd.edu. Click the Student tile to go to your Student Overview.
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From your student homepage, select My Appointment Times.
- Choose your Academic Year and Academic Session (term) from the dropdown menus.
- Your personal booking windows will appear as cards on screen.
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🚩Important Note About Booking Window Assignments: Based on lessons learned from Fall 2026 and the continued transition to TSS, booking windows have been divided into smaller groups to help reduce potential system issues and provide a smoother booking experience.
To assign booking windows, students are placed in a primary booking window group based on the combination of number of quarters completed and cumulative units passed. All incoming first-year students have been placed in the primary first-year window and all incoming transfer students have been placed in the primary Junior 1 window, regardless of whether prior coursework is posted yet or not. Then, if necessary, students are randomly assigned to a smaller group within that primary booking window group to promote an equitable distribution of booking times. Randomization does not change the eligibility criteria for booking windows, but instead promotes an equitable distribution of booking times.
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For additional booking support and guidance, view:
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Review these important reminders about booking:
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- If you miss your first pass appointment, you will need to wait for your second pass to begin enrollment.
- Review and resolve any holds as soon as possible so you can book your classes on time!
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Review your TritonPay now and pay any outstanding fees immediately to ensure you are able to enroll for Winter 2027.
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View important dates regarding the Winter 2027, including bill and payment due dates, on the Booking and Registration Calendar 2026-2027.
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Regardless of your booking window assignment, pre-authorization requests can be submitted beginning today via the Triton Enrollment Authorization (TEA) application in TSS. View the TEA guide to learn how to submit and monitor TEA requests.
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- If your transfer coursework is not yet officially posted to TSS, you will need to submit a TEA request for any course using that as a prerequisite.
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Courses requiring a C- or better grade in the prerequisite: Any transfer course has a TR grade which TSS treats like a D grade for the purpose of booking checks. If you are using the transfer course as the prerequisite to enroll in the next course that requires a C-, you must submit a TEA request. This is common in Math courses.
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College Writing courses: If your AP/IB scores or transfer credit that would clear the Entry-Level Writing Requirement is not yet posted for new first-year students, you will need to submit a TEA request.
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Maximum Units and Waitlists Reminder |
- During first pass, you can enroll in up to 11.5 units.
- During second pass, you can enroll in up to 19.5 units.
- Starting the first day of instruction, you may enroll in up to 22 units.
- Waitlists will open on November 16, 2026.
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- The Winter 2027 Schedule of Classes is available in TSS (login required) and on Class Planner (no login required).
- Refer to the Plan Your Class Schedule guide to start planning your classes.
- Once your first pass begins, you can start booking your planned classes.
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In-Person Exams for Remote Courses |
- Some remote courses may require in-person midterm and/or final exams.
- Your exam modality will be noted next to the exam under ‘Event Schedule’. Make sure to take note of the Building and Room information of exams, to verify if the exams are in person or remote.
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- You must use Google Chrome on a laptop or desktop, not a mobile device, to book courses. You may also need to clear your web browser's cache and cookies.
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There are no email notifications for TSS actions or requests. Students, staff, and faculty must login to TSS directly to view notifications and required actions.
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The below TSS issues have been resolved. If you encounter any of these issues while attempting to book, please submit a support ticket to tss@ucsd.edu.
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- TSS is now showing the correct date, time, and room for final exams
- Double booking is now prevented
- This includes booking two sections of the same course, booking one section and waitlisting for another section of the same course, and waitlisting for two sections of a course.
- Waitlists order is no longer skipping numbers
- Clicking book after being on a waitlist already will not move students further down the waitlist
- Students will not be dropped from the course when attempting to book a waitlisted course
- Switch button has been disabled.
- There have been many more TSS issues that have been resolved throughout the transition. To view the resolved issues, visit the tab on the TSS: Current Limitations and Know Issues document.
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- A schedule calendar view of booked classes is now available via My Academic History
- System has been optimized to prevent slowness and technical issues with large groups
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If you encounter any issues with TSS, please submit a support ticket to tss@ucsd.edu. Make sure to include any screenshots or screen recordings, as these are most helpful in identifying the issue.
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University of California San Diego
Office of the Registrar
9500 Gilman Drive
Mail Code 0022
La Jolla, CA 92093
(858) 534-3150 | Visit Our Webpage
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