Official Time Reporting Act This bill requires the Office of Personnel Management (OPM) to report annually to Congress on the use of official time by federal employees. Official time is paid time off from assigned duties to perform labor-management relations activities. Among other things, the OPM must report on the following: the total amount of official time granted to employees, the specific types of activities for which official time was granted, and the total amount of compensation provided to employees in connection with official time activities.