Sailor Moon (TV Series 1995–2000): 1x6

Time Bomb

Usagi and Ami go to the city to enjoy some shopping, where they find a clock store selling a clock that resembles Luna. Later that day, Usagi is happy to learn that her mother bought the exact same clock as a gift. But that night, the clocks from the store emit a strange light, making Usagi and the rest of Tokyo very impatient.