안녕하세요~~
You may see that Koreans will drop the -요일 and just use
일
월
화
수
목
금
토
Kinda like how we say mon, tues, wed, thurs, fri, sat, sun.
Also you might something like 금토일 which is just Friday, Saturday, Sunday. Or 월화수목금 as mon-fri (talking about the week days)














