Stars rise about 4 minutes earlier each day. Roughly how much earlier does a star rise after a month?

1. Our clocks run on solar time, so the stars slip 4 minutes earlier every day. 2. A month is about 30 days, so multiply 4 minutes by 30. 3. That gives 120 minutes, which is 2 hours earlier. 4. Four hours would need two months of slipping, so it is the answer to the wrong span. _Source: OpenStax Astronomy (CC BY 4.0), Ch 4 "Earth, Moon, and Sky" and Ch 5 "Radiation and Spectra", section 4.3 Keeping Time_