Utah observes Mountain Time:
| Zone | Standard Diff | Daylight Diff |
|---|---|---|
| Pacific (PT) | +1 hour | +1 hour |
| Central (CT) | −1 hour | −1 hour |
| Eastern (ET) | −2 hours | −2 hours |
| UTC/GMT | −7 hours | −6 hours |
Examples (Standard Time):
Daylight Saving Note: Utah springs forward/fall back with most US states. Arizona (mostly MST year-round) aligns with Utah in winter, Pacific in summer.
Global coordination: 24 zones × 15° longitude. Utah ≈ 112.5°W (center of Mountain zone).