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

MENLO PARK, California, April 14, 2008 -- Robert Half International Inc. (NYSE symbol: RHI) today announced it expects to release first-quarter 2008 earnings results on Tuesday, April 22, at approximately 4 p.m. EDT. Robert Half International management will conduct a conference call at 5 p.m. EDT on April 22, following the release. The dial-in number is 800-862-9098 (+1-785-424-1051 outside the United States) and the passcode is "Robert Half International." A taped recording of this call will be available for replay beginning at approximately 8 p.m. EDT on April 22 and ending at 8 p.m. EDT on April 29. The dial-in number for the replay is 800-283-8486 (+1-402-220-0869 outside the United States). 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 leading independent internal audit and risk consulting firm. The company's specialized staffing divisions include Accountemps®, Robert Half® Finance & Accounting and Robert Half® Management Resources, for temporary, full-time and 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.