Is there a way to total up the worked hours of a Technician

Summary:

We are looking at triggering certain message scenarios based on things like a resource's total working time. Essentially we want to trigger a property to be set based on a resource working 12 hours within one day, however this could be 12 consecutive hours or it could be 8 hours with route deactivation, followed by a further 4 hours. If there is any advice on how you could do this it would be really helpful!

Content (please ensure you mask any confidential information):

This is to ensure that users are forced to do a mandatory Health and Safety form when they exceed a total amount of working time of 12 hours. At the moment it is optional so higher risk.