Have a nice day *in polite language (for stranger or older person) ; 좋은 하루 되세요. / 좋은 하루 보내세요. jo-eun ha-ru doe-se-yo / jo-eun ha-ru bo-ne-se-yo. jo-eun : good ha-ru : a day doe-se-yo : be something. bo-ne-se-yo : send *in friendly language (for friendly person or younger person) ; 좋은 하루 보내. jo-eun ha-ru bo-ne. bo-ne : send