The concept of time and its management has been a crucial aspect of human civilization, influencing various aspects of our daily lives. One of the intriguing phenomena in the realm of timekeeping is the Eastern Daylight Saving Time (EDT), which has been implemented in several regions around the world. This paper aims to delve into the world of EDT and its unexpected connection to a fascinating topic: Yua Sakuya, a character from the popular Touhou series.