A system for determining a driver log entry comprises a processor and a memory. The processor is configured to determine a log start time. The processor is configured to determine a driver identity after the log start time. The processor is configured to determine whether a change to the driver identity has occurred based at least in part on a sensor data. In the event that the driver identity has changed, the processor is configured to determine a log stop time and determine a driver log entry using the log start time, the driver identity, and the log stop time.