With these standard abbreviations holding true for the entire week:

Mon = s/b Mn
Tue = s/b Tu
Wed = s/b Wd
Thu = s/b Th
Fri = s/b Fr
Sat = s/b Sa
Sun = s/b Sn

?

Hope it's possible. I have code that does something similar elsewhere
in XL2K, but nothing I've tried in converting it to this particular
spreadsheet's use, works. Thanks so much. :oD