With HiveDesk, you can automatically track time your employees spend on back office work. Just create projects for each type of work and assign employees to those projects. HiveDesk will do the rest.
You can log into your dashboard at any time to see how much time was spent on each project and how much time each employee has worked on the project. You can generate timesheet reports by project and employees. You can see if you should reallocate resources based on the workload for each type of work or project.