Time zone erratically assigned

I'm using Bookings through an Education account at an R1 university.

I have attempted setting up my calendar availability many different ways in Bookings, but I continue to experience the same error about which many others have complained.  Unfortunately, the workaround that seems to work for business users is not an option in educational accounts.  The option to "Always show time slots in business time zone" appears nowhere.

This morning, I had a student book an appointment with me, thinking it was at 10a (PST), when it was actually a slot for 1pm (EST, and where we are located). The confirmation email I received showed the time as 12p (CST).

This seems to be a perennial problem with Bookings, yet no one seems to have a solution for it in this particular context.  We're not technically a "business," but major universities are BIG money for Microsoft.  I can only imagine how much profit they are making selling their platform to a university like this, with >32k students and >12,000 employees, across all campuses. It seems like y'all might consider re-working the application code to develop a more stable solution.  I never had this issue when our University still allowed us to use Google calendar with students.

If someone has an answer, I will be forever in your debt.