Aikavyöhyke
- Currently Mountain Standard Time (MST), UTC -7
- Kesäaikaan (Mountain Daylight Time (MDT), UTC -6) starts 10. maaliskuuta 2019
The IANA time zone identifiers for Mountain Time are America/Boise, America/Cambridge_Bay, America/Denver, America/Edmonton, America/Inuvik, America/Ojinaga ja America/Yellowknife.