Distance between Boulder and Granite City
Distance from Boulder, CO to Granite City, IL is 812 miles / 1307 kilometers.
Map showing the distance from Boulder to Granite City
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Air distance: | miles km |
Boulder, CO
| City: | Boulder, CO |
| Country: | United States |
| Coordinates: |
40°0′53″N 105°16′13″W |
Granite City, IL
| City: | Granite City, IL |
| Country: | United States |
| Coordinates: |
38°42′5″N 90°8′55″W |
Time difference between Boulder and Granite City
The time difference between Boulder and Granite City is 23 hours. Granite City is 23 hours behind Boulder. Current local time in Boulder is 23:59 MST (2025-01-07) and time in Granite City is 00:59 CST (2025-01-08).