Charter Oak Federal Credit Union Address: 589 Hartford Pike, Dayville, CT 06241 Phone: (860) 446-8085 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-6pm Banks, Financial Advisory Services, Credit Unions Other Businesses: First Niagara Bank at 1078 N Main St, Dayville, CT 06241 Savings Institute Bank & Trust at 596 Hartford Pike, Dayville, CT 06241 Savings Institute Bank & Trust at 738 Hartford Pike, Dayville, CT 06241 Jewett City Savings Bank at 560 Hartford Pike, Dayville, CT 06241