MINNEAPOLIS, May 15, 2006- Investors are invited to listen to Ceridian Corporation's (NYSE: CEN) analyst meeting presentation live via the Internet from 9:00 a.m. to noon (EDT) on May 19, 2006. The Webcast can be accessed through the Investor Relations section of Ceridian's website at www.ceridian.com.

Ceridian management will provide an update and answer investor questions regarding Ceridian's businesses.

If you have any questions, call Craig Manson, Ceridian Corporation's vice president of investor relations, at 952/853-6022.

Ceridian Corporation (www.ceridian.com) is an information services company serving businesses and employees in the United States, Canada and Europe. Ceridian is one of the top human resources outsourcing companies in each of its markets, and offers a broad range of human resource services, including payroll, benefits administration, tax compliance, HR information systems and employee advisory programs. Through its Comdata subsidiary, Ceridian is a major payment processor and issuer of credit cards, debit cards and stored value cards, primarily for the trucking and retail industries in the United States.