HireDate
Hire date is the date on which an individual formally becomes an employee of an organization. It is typically recorded in the human resources information system as a core attribute of the employee record. Depending on policy, the hire date may correspond to the date the offer is accepted or the first day of actual work. Some organizations also track an original hire date (the initial date of employment) and an effective or rehire date (the date of the current period of employment).
In HR practice, the hire date is used to calculate length of service and to determine eligibility
In data systems, the hire date is stored as a date value with validations such as not
Practical considerations include that a contract start date may differ from the official hire date, and temporary