Time telling devices used in Danish health care are not synchronized

Many patients begin their encounter with the health-care services in an ambulance. In some critical patients, it is pivotal that the timing of treatment and events is registered correctly. When patients are transferred from one health care provider to another, there is a risk that the time telling devices used are not synchronized. It has never been examined if this is a problem in Denmark. We performed the present study to examine if time telling devices used in the pre-hospital setting were synchronized with devices used in emergency departments.