This page allows you to see the status of timesheets in Moment. In the picture below you will see a list consisting of employees along with the status of their respective timesheets. The column on the right of the locked status shows the date for the last hour that they have registered. The red bar indicated the last time their timesheet was locked and till which date.
This page comes with the following functionality:
This function, as the name suggest allows you to lock the timesheets either for selected employees or for all of them. Be aware that the employees will no be able to register hours in the period you've locked. Some users with sufficient access rights can overwrite these settings.