The angle between the two places =80∘−20∘The angle between the two places =60∘Every 1∘=4 minutes60∘=4×60 minutes =240 minutes60 minutes =1 hour240 minutes =4 hours9:00 a.m. +4 hours =1:00 p.m.Note: 3 hours will give 12 noon (9+3=12) and the remaining hour gives 1 p.m.