The most common Korean word for “weekday” is 평일 (pyeongil). 「weekday」는 한국어로 평일.
Learn 평일 free — flashcards, audio and review →「평일」 단어장으로 무료로 외우기Words and levels: TOPIK I essentials (National Institute of Korean Language standard curriculum, KOGL Type 1) · examples: Cheesepotato