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Distance between Boulder and Union City

Distance from Boulder, CO to Union City, CA is 916 miles / 1474 kilometers.

Map showing the distance from Boulder to Union City

Beeline Air distance: miles km
Leaflet | © OpenStreetMap contributors

Boulder, CO

City: Boulder, CO
Country: United States
Coordinates: 40°0′53″N
105°16′13″W

Union City, CA

City: Union City, CA
Country: United States
Coordinates: 37°35′44″N
122°1′8″W

Time difference between Boulder and Union City

The time difference between Boulder and Union City is 1 hour. Union City is 1 hour behind Boulder. Current local time in Boulder is 06:21 MST (2025-01-10) and time in Union City is 05:21 PST (2025-01-10).

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