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Contact Us

Keystone Education

660 N. Diamond Bar Blvd.

Suite #168

Diamond Bar, CA 91765

Tel: 909-860-9345


Hours of Operation
Fall Semester

Monday: 1:30pm - 6:30pm 
Tuesday: 1:30pm - 6:30pm 
Wednesday: 1:30pm - 6:30pm 
Thursday: 1:30pm - 6:30pm 
Friday: 1:30pm - 6:30pm 
Saturday: 8:30am - 3:30pm 
Sunday: Closed

Please check our calendar for holiday hours

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