Fellow diallists, I agree with the idea of a four year average of EoT values for use with dials. However, I'm not quite sure where February 29th would fit into the averages. I assume the table of average EoT values would not include February 29th. What EoT average value would be used for that day?
Further, when taking the averages over a four year period; how is February 29th to be treated? Is it to be considered to be equivalent to March 1st? It seems to me that the EoT value for dates after February 29th in a leap year would be off by one day. How is this taken into account when performing the averages? I have yet to think of a solution that is satisfying to me. What are your thoughts on this? In another vein, my son, Brandon, asked me today at what latitude does UT commence for use at the poles? I have known for some time that at the poles themselves UT is used for timekeeping, but I had never considered how far from the poles one must be before entering one of the standard time zones. Does anyone know the limiting latitude for the polar regions? Charles **************************************** * Sundials and The Author * * http://www.geocities.com/athens/1012 * ****************************************
