Angles are measured from the base line (6 - 6)

This diagram shows line layout only.

It is not accurate for any latitude.

The gnomon angle is the same as location's latitude.

         Enter Latitude  - 

                       

     Hour Line    Angle (degrees)

     6AM & 6PM = 
     7AM & 5PM = 
     8AM & 4PM = 
    9AM & 3PM =  
   10AM & 2PM = 
   11AM & 1PM = 

     Enter longitude as decimal number.

     6AM and 6PM lines always "0" degrees.

     For latitudes south, invert hours on dial.