TIME ZONES - UNIT 2

What happens when you cross from one time zone to another? (EAST INCREASE, WEST LESS)

when you travel EAST of the Prime Meridian, you ADD ONE hour for EACH 15 degrees you cross. when you travel WEST of the Prime Meridian, you SUBTRACT ONE hour for EACH 15 degrees you cross.

What to do first

Determine the latitude (N/S of Equator) Determine the longitude (E/W of Prime Meridian) Label the coordinates

Earth's rotation

Earth rotates from west to east (counterclockwise) 360 degrees every 24 hours 360 degrees divided by 24 hours = 15 degrees/hr a single turn on an axis

United States Time Zones (P, M, S, E)

Eastern (us - East coast) Standard (moving west - subtract 1 hr) Mountain ( moving west, subtract 2 hrs) Pacific ( West coast, subtract 3 hrs)

Meridians

Lines of Longitude that zig zag around populated areas to stop the areas from being separated into separate time zones

What to do second?

One you have your latitude and longitude coordinates, find out the direction you're heading and add (WEST) or subtract (EAST) ONE hour for EACH 15 degrees.

Location of the United States

The entire U.S. is located NORTH of the EQUATOR and WEST of the PRIME MERIDIAN We can see Polaris because we're in the Northern Hemisphere.

Time Zones

only apply to longitude (E/W) 1 day = 24 hours in 24 hours, the Earth rotates 15 degrees every hour so Earth is divided into 24 time zones of 15 degrees longitude each in a time zone meridian, the local time is the same