
T is for Tuesday, R is for Thursday
As you view your schedule, keep in mind that SIRS uses one-letter abbreviations for each day of the week.
They are:
M: Monday
T: Tuesday
W: Wednesday
R: Thursday
F: Friday
S: Saturday
So for example, a schedule that lists classes “M W F” meets Monday, Wednesday, and Friday; and a schedule that lists classes “T R” meets Tuesday and Thursday.