ROBERT HALF INTERNATIONAL ANNOUNCES SCHEDULE FOR FOURTH-QUARTER EARNINGS RESULTS AND CONFERENCE CALL

FOR IMMEDIATE RELEASE

Contact: M. Keith Waddell
Vice Chairman, President and Chief Financial Officer
(650) 234-6000

MENLO PARK, California, January 18, 2011 -- Robert Half International Inc. (NYSE symbol: RHI) today announced it expects to release fourth-quarter 2010 earnings results on Wednesday, January 26, at approximately 4 p.m. EST. Robert Half International management will conduct a conference call at 5 p.m. EST on January 26, following the release. The dial-in number is 877-814-0475 (+1-706-643-9224 outside the United States). It is recommended that participants dial in five minutes before the call begins. The password to access the call is "Robert Half." A taped recording of this call will be available for replay beginning at approximately 8 p.m. EST on January 26 and ending at 8 p.m. EST on February 2. The dial-in number for the replay is 800-642-1687 (+1-706-645-9291 outside the United States). To access the replay, enter conference ID# 36559165. The conference call also will be archived in audio format on the company’s website at www.rhi.com.

Founded in 1948, Robert Half International Inc., the world's first and largest specialized staffing firm, is a recognized leader in professional consulting and staffing services, and is the parent company of Protiviti®, a global consulting and internal audit firm composed of experts in risk, advisory and transaction services. The company's specialized staffing divisions include Accountemps®, Robert Half® Finance & Accounting and Robert Half® Management Resources, for temporary, full-time and senior-level project professionals, respectively, in the fields of accounting and finance; OfficeTeam®, for highly skilled temporary administrative support personnel; Robert Half® Technology, for information technology professionals; Robert Half® Legal, for legal personnel; and The Creative Group®, for advertising, marketing and web design professionals.

Robert Half International has staffing and consulting operations in more than 400 locations worldwide.