Longitude/ Latitude and Telling time

Welcome back to my blog. Today in class we went over longitude and latitude on and map. We also talked about time zone. I learned that a geographical grid is a grid that had horizontal and vertical lines that you can't actually see in real life on Earth's surface. I learned that the arcs that run from the North Pole to the South Pole are called meridians is longitude. The imaginary lines the are parallel and same distance from equator and run in the same direction is latitude. Certain places on earth can be pin pointed and communicated by longitude and latitude and where the degrees/ lines meet. I also got confused when we started talking about how you can use minutes and seconds to make more accurate points. I didn't understand how we would do that if we got a question about it on the test, but I am not stressing about it now, it will eventually make more sense. Since Earth is a sphere it gets divided into 360 degrees and that is how time had started.