This feature is available with users of companies that have implemented the 'Resource Planning' module on WorkPack. Basically this enables any user to check his/her own workload in a given period.
Go to the 'Tasks' section in menu and click on 'Loading'.
Then a bar chart opens up indicating your workload for the current month, spread across different weeks. You can navigate to see workload for different weeks or months using the buttons on top. For each week, the chart indicates - number of available hours, number of leave hours (from approved leave) and workload on different projects. Click on any particular week to drill deeper and check the workload for that week.
When you click on the bar for any particular week in the chart, you can see the workload of that week distributed across different days.