Time zones lab. You will need to refer to the time zone map on page 3. If you do not know which time zone a city is located in, you may reference the internet, but be sure to show your work in the l

• Geog 301  Page 3 of 3

KEY

Time Zones

To reduce confusion, countries of the world have developed a system of time zones, whereby everyone in a certain area agrees to be on the same time. Generally, a time zone is an area approx. 15 of longitude wide centered on a controlling meridian. It is only at the controlling meridian that solar noon = clock noon. The controlling meridian for the Pacific Time Zone is 120W, which means that it includes approx. 7½  east and west of the controlling meridian. It is in this manner that clocks in Sacramento are synchronized with clocks in San Francisco. Use the following guidelines (and the time zone map on page 3) to answer time zone questions.

To determine the time at another location, begin with your start time/date and then:

• First, add or subtract the time zone difference in hours. Be sure to adjust the day of the week if you “cross over” midnight.

• Second, IF there is travel time involved, always add the travel time.

• Third, IF you cross the International Date Line heading toward the Americas (eastward), subtract one full day (-24hrs). If you cross the International Date Line heading toward Asia (westward), add one full day (+24hrs). Now you should have the correct time!

Lab Activities, show your work

SAC = 1.50 x 4min/ = 6.00min = 6min 0 sec

1. If it is 2am Thursday in Los Angeles, what time and day is it in New York?

1. If it is 9pm Monday in Sacramento, and you take a 6 hour flight to Washington, D.C., what time and day is it when you arrive?

1. If it is 5pm Saturday in San Francisco, and you take a 12 hour flight to Tokyo, Japan, what time and day will you arrive? Hint: There is a 17 hour time difference between these two locations.

1. If it is 11:00am Wed in Perth, Australia (west coast) and you fly northeastward for 13 hours to Miami, Florida, what time and day will you arrive?

1. If it is 10:00 a.m. Monday in Denver (based on 105° W), what time and day is it in New York City (75° W)?

1. If it is 11:00 a.m. Thursday in Seattle (120° W), what time and day is it in Seoul, South Korea (135° E)?

1. A satellite image of the United States was taken at “09:00Z.” (Zulu time – refer to page in Canvas this week titled “Time Zones”) What was the local standard time in Chicago (90° W)?

1. Convert 14:25 GMT to PST (Pacific Standard Time).

1. Your plane leaves Boston (75° W) at 7:00 a.m. on Saturday, bound for Los Angeles (120° W). The flight takes 5 hours. What is the time and day when you arrive in Los Angeles?

1. Your connecting flight to Taipei (120° E) leaves Los Angeles at 1:00 p.m. on that same day. The flight takes 11 hours. What is the time and day when you arrive in Taipei?