{
 "source": "https://peabody.kids/flashcards/geo-time-zones",
 "id": "geo-time-zones",
 "title": "Time Zones Basics",
 "category": "geography",
 "subject": "Geography",
 "levels": [
  "3-5",
  "6-8",
  "9-12"
 ],
 "description": "How time zones work, with the U.S. zones and a few world cities.",
 "tags": [
  "time zones",
  "longitude",
  "basics"
 ],
 "frontLabel": "Question",
 "backLabel": "Answer",
 "cards": [
  [
   "Why do we have time zones?",
   "The Earth turns, so the sun is high at different times in different places"
  ],
  [
   "How many degrees of longitude is one time zone, roughly?",
   "15 degrees"
  ],
  [
   "How many hours does the Earth take to turn once?",
   "24 hours"
  ],
  [
   "What line is zero degrees longitude?",
   "The Prime Meridian"
  ],
  [
   "Which city does the Prime Meridian run through?",
   "Greenwich, London (England)"
  ],
  [
   "What does UTC stand for?",
   "Coordinated Universal Time",
   "The standard time all zones are measured from"
  ],
  [
   "What is GMT?",
   "Greenwich Mean Time, the time at the Prime Meridian"
  ],
  [
   "Which line is roughly where one calendar day changes to the next?",
   "The International Date Line"
  ],
  [
   "Where is the International Date Line in the Earth?",
   "About 180 degrees longitude, in the Pacific Ocean"
  ],
  [
   "If you cross the Date Line going west, what happens to the date?",
   "It moves forward one day"
  ],
  [
   "If you cross the Date Line going east, what happens to the date?",
   "It moves back one day"
  ],
  [
   "Which way does the sun seem to move across the sky?",
   "East to west"
  ],
  [
   "If it is noon in New York, is it earlier or later in Los Angeles?",
   "Earlier, because Los Angeles is further west (9 a.m.)"
  ],
  [
   "Name the four main U.S. time zones in the lower 48 states.",
   "Eastern, Central, Mountain and Pacific"
  ],
  [
   "Which U.S. time zone is farthest east in the lower 48?",
   "Eastern Time"
  ],
  [
   "Which U.S. time zone is farthest west in the lower 48?",
   "Pacific Time"
  ],
  [
   "Which zone is New York City in?",
   "Eastern Time"
  ],
  [
   "Which zone is Chicago in?",
   "Central Time"
  ],
  [
   "Which zone is Denver in?",
   "Mountain Time"
  ],
  [
   "Which zone is Los Angeles in?",
   "Pacific Time"
  ],
  [
   "Which zone is Alaska mostly in?",
   "Alaska Time"
  ],
  [
   "Which zone is Hawaii in?",
   "Hawaii–Aleutian Time"
  ],
  [
   "How many hours apart are Eastern and Pacific Time?",
   "Three hours"
  ],
  [
   "What is Daylight Saving Time?",
   "Moving clocks ahead an hour in spring and back in fall to use more daylight"
  ],
  [
   "Which U.S. state mostly does not use daylight saving time?",
   "Arizona (except the Navajo Nation)",
   "Hawaii also does not use it"
  ],
  [
   "What does a.m. mean?",
   "Ante meridiem: before noon"
  ],
  [
   "What does p.m. mean?",
   "Post meridiem: after noon"
  ],
  [
   "What time zone is London in during winter?",
   "GMT (UTC+0)"
  ],
  [
   "Which time zone is Tokyo, Japan in?",
   "Japan Standard Time (UTC+9)"
  ],
  [
   "Which time zone is India in?",
   "India Standard Time (UTC+5:30)"
  ],
  [
   "Which time zone is Beijing, China in?",
   "China Standard Time (UTC+8)",
   "China uses one time zone for the whole country"
  ],
  [
   "Which country has the most time zones, counting overseas territories?",
   "France"
  ],
  [
   "Which large country spans eleven time zones?",
   "Russia"
  ],
  [
   "Which zone is Paris in during winter?",
   "Central European Time (UTC+1)"
  ],
  [
   "Which zone is Sydney, Australia on the east coast in?",
   "Australian Eastern Standard Time (UTC+10)"
  ],
  [
   "What does it mean when a place is 'ahead' of us in time zones?",
   "It is further east, and its clock shows a later time"
  ],
  [
   "At which time is the sun directly overhead, on average?",
   "Around noon (solar noon)"
  ]
 ]
}