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

MENLO PARK, California, April 14, 2011 -- Robert Half International Inc. (NYSE symbol: RHI) today announced it expects to release first-quarter 2011 earnings results on Thursday, April 21, at approximately 4 p.m. EDT. Robert Half International management will conduct a conference call at 5 p.m. EDT on April 21, 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. EDT on April 21 and ending at 8 p.m. EDT on April 28. 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# 53396047. 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 business 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 office and administrative support personnel; Robert Half® Technology, for project and full-time technology professionals; Robert Half® Legal, for project and full-time staffing of lawyers, paralegals and legal support personnel; and The Creative Group®, for creative, advertising, marketing and web and public relations professionals.

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