# Availabilities

In Resource Management by Smartsheet, we have the concept of a work week. It defines the days of the week that are to be considered work days and the number of work hours for those days. Given this work week, you can determine the number of work hours per day in any given date range. The work week is configurable by an account administrator via the account settings pages.

User availabilities are a mechanism by which you can further customize the work days for individuals in your team. When an individual has a work schedule that deviates from the normal work week observed by your team, say, because they're working part-time during some time period, an administrator can specify that by adding one or more availability time blocks to that user’s profile.

When a user specifies one or more availability time blocks, Resource Management by Smartsheet always considers those in addition to the company's normal work week information.