Mountain Standard Time (North America)

• Mountain Standard Time (North America) (MST) is -7 hours behind of Coordinated Universal Time, UTC-7, it is used in winter. In summer used Mountain Daylight Time (North America), UTC-6
• Wikipedia: Mountain Standard Time (North America)

Countries in Mountain Standard Time (North America)

• Canada:
  
  • Yukon
  • British Columbia
• Mexico:
  
  • Sonora
  • Nayarit
  • Baja California
  • Baja California Sur
  • Sinaloa
• United States:
  
  • Washington
  • California
  • Nevada
  • Arizona
  • Oregon