There are 23.97 miles from Discovery Bay to Concord in west direction and 34 miles (54.72 kilometers) by car, following the CA 4 route.
Discovery Bay and Concord are 42 minutes far apart, if you drive non-stop .
This is the fastest route from Discovery Bay, CA to Concord, CA. The halfway point is Antioch, CA.
Discovery Bay, CA and Concord, CA are in the same time zone (PDT). Current time in both locations is 1:07 pm.
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