HR

hr is an abbreviation with more than one common meaning. In timekeeping, hr denotes an hour, a unit of time equal to 60 minutes or 3600 seconds. The standard SI unit symbol for an hour is h, but 'hr' remains common in informal writing, schedules, and logs.

In organizational contexts, HR stands for human resources, the department responsible for managing the workforce. Core functions include recruitment and onboarding, training and development, compensation and benefits, performance management, and employee relations. HR also handles compliance with labor and employment laws, records management, and workplace safety. In recent decades the field has emphasized talent management, diversity and inclusion, and alignment of HR strategy with business goals.

Technology supports HR work through systems such as human resources information systems, applicant tracking systems, payroll software, and benefits administration platforms. HR analytics applies data to workforce planning, turnover, time-to-hire, and other metrics to inform decision making. Practices and regulations vary by country and industry, and privacy and ethical considerations are central when handling personnel data.

See also workforce management and labor law.