UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ______________ FORM 10-Q ______________ ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 1-5397 ______________ AUTOMATIC DATA PROCESSING, INC. (Exact name of registrant as specified in its charter) | ...