About Time (Hangul: 멈추고 싶은 순간: 어바웃타임; lit. A Moment I Want to Stop: About Time) is an upcoming fantasy romance South Korean television series starring Lee Sang-yoon and Lee Sung-kyung. It is set to air on tvN in May 21, 2018 on Mondays and Tuesdays at 21:30 KST time slot.