The rulers have unlimited power
Explanation:
Longitude systems going north-south, parallel to the Planet's rotational direction. As a result, the Sun would be at the same elevation for all locations in a path of longitude, i.e., it reaches local noon at same moment everywhere along the elevation. As a result, the local time is the same.
I’m not sure of 1 and 2 but i know 3 is “yes because and object can be elevated above the ground and be moving at the same time”