Step-by-step explanation:
San Francisco is in the Pacific Time Zone (PT), while Chicago is in the Central Time Zone (CT). The time difference between the Pacific Time Zone and the Central Time Zone is 2 hours, with the Central Time Zone being 2 hours ahead of the Pacific Time Zone.
So, if you leave San Francisco at 5:30 P.M. (Pacific Time), when you arrive in Chicago, it would be 5:30 P.M. + 2 hours = 7:30 P.M. in Chicago.