Why were time zones developed? Question 26 options: 1) Railroads and telegraphs needed standardized time. 2) Calculating the actual mean solar time is difficult. 3) Calculating the apparent solar time is difficult. 4) It forces the sun to be directly overhead at local noon everywhere on the planet. 5) It prevents the sun from being directly overhead at local noon anywhere on the planet. 6) Mean solar time varies with latitude