Operations, like mining and truck traffic, are some of the top causes of air pollution. These activities release carbon monoxide, sulfur dioxide and nitrous oxide into the air, all of which contribute to development of smog and various health problems.
King of Prussia Information. Time Zone. Abbreviation / Name. EDT - Eastern Daylight Time. EST - Eastern Standard Time. UTC / GMT Offset. -4:00 hours during Eastern Daylight Time, currently in use. -5:00 hours during Eastern Standard Time.
The time zones are Eastern, Central, Mountain, and Pacific. You might notice that live television programs often begin at 8:00 Eastern, 7:00 Central, 6:00 Mountain and 5:00 Pacific. Alaska is an hour behind Pacific Time and Hawaii is two hours behind Pacific Time.For convenience, almost all of Alaska uses a single time zone. During the period when Daylight Saving Time is not in use, the sun is overhead at about noon in Alaskaâs capital, Juneau. Juneau is in the eastern portion of Alaska.ost of the United States sets their clocks ahead one hour in the summer, so during Daylight Saving Time the east coast of the United States is four hours behind Greenwich Mean Time. There are four time zones in the continental United States.