Can a worker turn StaffCounter off for some time?

Yes, they can. Even without administrator rights, an employee can open the program and stop monitoring. However, after a reboot, StaffCounter will automatically start again.

If the StaffCounter icon is visible in the menu bar (which is always the case for the cloud service), an employee can use it to temporarily disable monitoring for 30 or 60 minutes, depending on the version. Once this period expires, monitoring will resume automatically. Additionally, there is a command to stop monitoring completely. In such cases, the activity log will display the entry “Monitoring stopped by the user” or “Monitoring paused by the user”.