Re: time scale labels

[Donald L. Snyder]

Due to horizon clutter, I am constrained to a south-facing dial that can only display times near noon, so I made a meridian dial with a discontinuous analemma to account for transitions between CDT and CST.  It's at http://www.stlwoodworkersguild.org/gallery/snyder_sundial.jpg            Don Snyder          38.6N, 90.3W   ----- Original Message ----- From: sundials To: sundial@rrz.uni-koeln.de Sent: Thursday, July 18, 2002 1:30 PM Subject: Re: time scale labels Hello Jim,   To differentiate between the two scales perhaps you could use roman numerals for one and arabic for the other.  Also, may I suggest that instead of putting them one above the other that you put one "inside" the other so that they appear to be side by side.  Perhaps you could separate them by a continuous double line?   As John has said, I don't think it matters whether you call them summer time or DST etc. but you would need an EoT curve either on the dial plate or, more conveniently, on a small plate at head height.   Regards,   Silas Higgon (Connoisseur Sun Dials) ----- Original Message ----- From: J.Tallman To: Sundial List Sent: Thursday, July 18, 2002 3:56 PM Subject: time scale labels Hello All,   I have been working on a vertical sundial and I have a question.   This South facing vertical has two time scales on it, one at the top that shows the hour numbers to use during the period of the year when Standard time is in effect, and one at the bottom to show the hour numbers to use during the Summer when Daylight Saving time is in effect.  The hourlines will include the appropriate longitude correction for the site.  There is also a complete EoT chart located right under the shadowfield on the face of the dialplate.      My question is whether or not it would be acceptable to actually label each scale "Standard Time" or "Daylight Saving Time" so that casual observers would be able to tell which one to use for the appropriate time of the year.  My understanding is that there are three things to consider when designing a dial that will indicate Standard Time: solar time at the reference meridian, longitude correction, and EoT.  Since all three of these things will be dealt with on the dial face, would it be appropriate to label the time scales?    One of my good sundial friends has commented that technically the scales do not really indicate true Standard Time/DST because the EoT is not actually computed into the hourlines.  I would be interested to hear what the consensus is regarding this issue, because I want to do the right thing.  If these exact titles are objectionable does anyone have any ideas what I might use for alternative labels?  I am trying to make a dial that is easy for "regular people" to understand and use, and I think some kind of label along the time scales would be helpful to casual observers.   Regards,   Jim Tallman Sr. Designer FX Studios 513.829.1888