Weather map
At first, all the data on the map was not taken from these analyses. This was because there was not enough time standardization. People first tried to standardize time in Great Britain in 1855. The entire United States was not influenced by time zones (areas with different times) until 1906. This was when Detroit had made the standard time at last. Over all the earth, other countries began taking weather observations at the same time. This started in 1873.