How do we define time globally?

longitude and latitude grids mark the globe for points of reference to the foot in degrees. then the globe is divided with alphabetical letters starting with a in greenwhich or 0000hours then moves around the globe from the 0 hour to the right until it reaches one hour before itself itself 2400 later so each zone is assigned a letter of the alphabet a-b-c and the hour is in conjunction with the letter so a=0 b=1 c=2 and so on until x is 2400

Explanation:

the thirteen colonies are:

connecticut, delaware, georgia, maryland, massachusetts, new jersey, new york, new hampshire, north carolina, pennsylvania, rhode island, south carolina, virginia

i think it's a but not entirely sure