Over at Oxford University they use their own calendaring scheme to label the terms and weeks of their school year. With some custom code, we can configure the Emacs M-x calendar to tell us (i) which term we are in for the current month of the Oxford academic year, if any, (ii) which term and week number we are in, if any, and (iii) which is the standard week number. UPDATE 2025-01-09 18:36 +0200: I revised a few lines of code to (i) work with either Sunday or Monday as the first day of the week, (ii) not show any Oxford week beyond the years specified in prot-oxford-dates .