To use the javascript calculator below, convert your latitude into a decimal number for entry. Example: 48 o45' N would be entered as 48.75 Then click the calculate button to see the resulting angles for your dial.

Your Latitude:    

Sun Hour Angle (Time) Dial Hour Angle
Sundial time: 12 Noon
Sundial time: 11:45 am or 12:15 pm
Sundial time: 11:30 am or 12:30 pm
Sundial time: 11:15 am or 12:45 pm
   
Sundial time: 11:00 am or 1:00 pm
Sundial time: 10:45 am or 1:15 pm
Sundial time: 10:30 am or 1:30 pm
Sundial time: 10:15 am or 1:45 pm
  
Sundial time: 10:00 am or 2:00 pm
Sundial time: 9:45 am or 2:15 pm
Sundial time: 9:30 am or 2:30 pm
Sundial time: 9:15 am or 2:45 pm
  
Sundial time: 9:00 am or 3:00 pm
Sundial time: 8:45 am or 3:15 pm
Sundial time: 8:30 am or 3:30 pm
Sundial time: 8:15 am or 3:45 pm
  
Sundial time: 8:00 am or 4:00 pm
Sundial time: 7:45 am or 4:15 pm
Sundial time: 7:30 am or 4:30 pm
Sundial time: 7:15 am or 4:45 pm
  
Sundial time: 7:00 am or 5:00 pm
Sundial time: 6:45 am or 5:15 pm
Sundial time: 6:30 am or 5:30 pm
Sundial time: 6:15 am or 5:45 pm
  
Sundial time: 6:00 am or 6:00 pm
Sundial time: 5:45 am or 6:15 pm
Sundial time: 5:30 am or 6:30 pm
Sundial time: 5:15 am or 6:45 pm
  
Sundial time: 5:00 am or 7:00 pm