On Sunday, November 19, 2017 at 10:34:04 AM UTC, Mikko wrote:
In article ,
Gerald Kelleher wrote:

The basic experiment involves either a sand or water clock. The period of one
noon to the next full cycle would generate different volumes of water and
sand reflecting the variation in the total length of each individual cycle .

Sand and water clocks are too inaccurate to detect the variation in
duration from one noon to the next.

Mikko

To be fair to you and if your question was genuine, the answer to the quoted text only refers to the natural variations determined by the unequal amounts of sand and water for each respective noon cycle . By accumulating say 10 cycles of sand noting the variation for each and then dividing equally by 10, you get an idea how the average volume in anchored to the natural noon cycle.

It represents how the average 24 hour day is created and subsequently its divisions into equal hours, minutes and seconds. I can't prevent rude people from interjecting as this is an open forum with all its advantages and disadvantages but at least your objection was intelligent.