Capricorn: Dec.22-Jan.29 The Sundial Primer
created by Carl Sabanski
Capricorn: Dec.22-Jan.29

Mr. Sun The Sundial Primer Index "Sunny Day U" Index Mr. Sun

"SUNNY DAY U"


Custom "Dialling Guides" - Horizontal & Vertical Sundials

If you are interested in a custom designed "Dialling Guide" here is what we have to offer:

  • Horizontal and vertical sundial "Dialling Guides" designed for local apparent or solar time.
  • Horizontal and vertical sundial "Dialling Guides" designed for zonal solar time, i.e. local apparent time with longitude correction.

The minimum time interval for all the "Dialling Guides" is 5 minutes.

Figure 1 illustrates a "Dialling Guide" for a horizontal sundial at 50 N latitude designed for local apparent time.

Figure 1: "Dialling Guide"- Horizontal Sundial/Local Apparent Time

Figure 1: "Dialling Guide"- Horizontal Sundial/Local Apparent Time (ZW2000/CAD)

Figure 2 illustrates a "Dialling Guide" for vertical north and south sundials at 50 N latitude designed for local apparent time.

Figure 2: "Dialling Guide"- Vertical Sundials/Local Apparent Time

Figure 2: "Dialling Guide"- Vertical Sundials/Local Apparent Time (ZW2000/CAD)

A "Dialling Guide" designed for zonal solar time has its hour lines shifted. The degree of shift depends upon your longitude relative to your time zone meridian. This shift can be as much as 30 minutes. As a result the "Dialling Guides" for the horizontal sundial and vertical north and south sundials are each unique.  Figure 3 illustrates a "Dialling Guide" for a horizontal sundial at 50 N latitude and 95 W longitude, designed for zonal solar time. Notice that the hour lines are shifted counter-clockwise by 20 minutes.  There are separate "Dialling Guides" for the vertical north and south sundials.

Figure 3: "Dialling Guide"- Horizontal Sundial/Zonal Solar Time

Figure 3: "Dialling Guide"- Horizontal Sundial/Zonal Solar Time (ZW2000/CAD)

The layout of your sundial using any of these "Dialling Guides" is done using the instructions provided with the free "Dialling Guides".

As a result there are 5 different "Dialling Guides" you can request:

1. Horizontal Sundial: Local Apparent Time
2. Vertical North and South Sundials: Local Apparent Time
3. Horizontal Sundial: Zonal Solar Time
4. Vertical North Sundial: Zonal Solar Time
5. Vertical South Sundial: Zonal Solar Time

IMPORTANT: For "Dialling Guides" 1 and 2 you must supply your latitude. For "Dialling Guides" 3, 4 and 5 you must supply your latitude and longitude. Visit the "Links" page at the North American Sundial Society web site and you will find sites that can help you determine your latitude and longitude. Perhaps you may know someone with a GPS unit....even one in a vehicle.

There is a cost for the custom "Dialling Guides" as follows:

  • $20.00 CAD each if you live in Canada.
  • $20.00 USD each if you live anywhere else.

The "Dialling Guides" are emailed to you as pdf files and so you must provide your email address with your request.

For payment options please go to the page "The Sundial Primer on CD". Click on the banner.

The Sundial Primer on CD

Thank you for your request.

If you have any suggestions on how the "Dialling Guides" can be improved, please let me know.

Happy Dialling!