Before 1918 standardized time zones didn’t exist, so several cities would simply run willy-nilly times based on their cities’ high noon. This proved to be rather confusing, especially once the railroads were established in the nineteenth century. This confusion would often create unequal schedules, communication issues, and sometimes cause accidents. In order to adhere to a more uniform schedule that wasn’t based on local times alone, the railroad systems adopted a time zone system in the U.S. by 1883. These time zones featured four different zones separated into the Pacific, Mountain, Central, and Eastern Time zones. Soon enough more states adhered to this time separation and by the early twentieth century the world adopted universal time zones. These zones had been determined at the 1884 International Meridian Conference where they determined the location time would start- the Observatory at Greenwich, England. From this prime meridian a set of twenty-four longitudinal lines approximately fifteen degrees apart divided the rest of the globe up and increased hourly as one moved westward. Shortly after the United States felt it was necessary to enforce these time zones across the continent by signing the Standard Time Act which was signed into law by Woodrow Wilson. This act also started the tradition of Daylight Savings Time as seasons changed- an idea the U.S. picked up from countries like Germany. With time standardized and adjusted for seasonal changes travel, transportation, shipping, and several other time based tasks could run more smoothly, which is why we still adhere to this concept today.