Distance between Ontario and Columbia
Distance from Ontario, CA to Columbia, MD is 2271 miles / 3655 kilometers.
Map showing the distance from Ontario to Columbia
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Air distance: | miles km |
Ontario, CA
| City: | Ontario, CA |
| Country: | United States |
Columbia, MD
| City: | Columbia, MD |
| Country: | United States |
Time difference between Ontario and Columbia
The time difference between Ontario and Columbia is 21 hours. Columbia is 21 hours behind Ontario. Current local time in Ontario is 21:29 PST (2025-03-01) and time in Columbia is 00:29 EST (2025-03-02).