Monitoring team member's availability
Within the contact page of the account, or on the contact page found in the subsection of each board, you can track how long a team member has been working on a task in the 'employment period' column (1).
This helps the owner/administrator to assign tasks and keep track of what employees/contractors are working and when.
However, pay attention as this time period is shown without accounting for whether the team member has had time off in that period, whether that's for an hour, a day, or a week!