2013 Event Columbia's Chiribiquete National Park expands to 3 million hectares from 1.2 million hectares, becoming one of the Amazon's largest protected zones 1942 Event Mexico changes from 3 time zones to 2 1918 Event Congress authorizes time zones and approves daylight saving time 1883 Event Standard time zones forms by railroads in U.S. and Canada 1825 Birthday Charles Ferdinand Dowd, U.S., standardized time zones
