The three dials, or clocks, are located on the HOS Screen in the driver app. These dials represent how many hours are remaining in the Hours of Service for rest break, shift, and cycle to help drivers prevent a violation.
The left clock shows the time remaining in a driver’s shift until their 30 minute break.
The middle clock shows the drive time remaining in a driver’s shift until they are required to take a 10 hour break.
The right clocks shows the time remaining on a driver’s cycle.
You can view a brief summary of HOS regulations directly from the FMCSA here.