On a hot summer day, Nora and her friends decided to have a water fight. They threw water balloons for 1 hour. When all the wate
r balloons were gone, they sprayed water with hoses for 30 minutes. The water fight ended at 1:45 P.M. when Nora's dad showed up with ice cream. What time did the water fight start? Include A.M. or P.M. in your answer (for example, 11:58 A.M.).