Video Sponsorship

• Sponsored by The Crew 2 (Ubisoft open-world racing game)
• Features recreated entire US for driving/racing
• Includes cars, boats, motorcycles, planes

Global Time Zone Theory vs Reality

• Perfect world: 24 equal time zones (1 hour each)
• Reality: distorted by country borders and politics
• Current system creates extreme oddities worldwide

Spain's Time Zone Anomaly

• Same longitude as Britain, Ireland, Portugal
• Remains 1 hour ahead despite western position
• Flying west from London to Madrid requires clock forward (not backward)
• Cause: Francisco Franco moved Spain 1 hour ahead in 1940
  • Goal: align closer to Nazi Germany
  • Never changed back after 70+ years

China's Unified Time Zone Policy

• Geographically spans 5 time zones
• Government mandates single timezone (Beijing time)
• Purpose: create national unity
• Consequences for western regions:
  • 2 hours behind Beijing in real terms
  • Reduced worker productivity
  • 9-5 job options: 7am-3pm or 11am-7pm
  • Apple accidentally switched users to unofficial local time zones
  • Users overslept by 2 hours
• China-Afghanistan border crossing:
  • 3.5 hour time difference (larger than Boston-LA)
  • Achieved by walking few minutes

International Dateline Irregularities

• Theory: straight line with 24-hour difference
• Reality: dramatically curved around Pacific islands

Samoa's Date Change

• December 30, 2011: completely skipped
• Country moved forward entire day
• Historical context:
  • 1892: Samoan king moved east of dateline (closer to US)
  • 2011: economy closer to Australia/New Zealand
  • 21 hours ahead of Sydney before change
  • Reverted to pre-1892 positioning

American Samoa Complications

• 70 km from Samoa
• Remained east of dateline
• 24-hour difference from Samoa
• 25-hour difference during summer

Kiribati Dateline Bulge

• Dateline extends 2,000 miles around Kiribati
• Creates travel paradox:
  • Start Hawaii (Monday) → travel south to Tuesday → continue south back to Monday
• Three days exist simultaneously worldwide
• Example: 6:30am Saturday NYC = 11:30pm Friday American Samoa = 12:30am Sunday Christmas Island

US Time Zone Complications

• Continental 48 states: 4 time zones
• Hawaii and Alaska: 1 each
• Daylight Saving Time exceptions:
  • Hawaii: doesn't follow (surrounded by ocean)
  • Arizona: doesn't follow (surrounded by land)

Arizona's Internal Time Zone Maze

• Navajo Reservation: follows daylight saving time
• Hopi Reservation: surrounded by Navajo, doesn't follow daylight saving
• Navajo enclave inside Hopi: follows daylight saving time
• Theoretical drive: 7 clock changes within single state