[time-nuts] Local Solar Time Clock

[Bob Camp]

Hi

I’d bet that you can do some sort of simple fit to +/- 3 days from today and get a reasonable estimate of the rate. Exactly what you would fit might vary over the year. 

Bob

On Jan 19, 2014, at 1:05 PM, Jim Lux <jimlux at earthlink.net> wrote:

> On 1/19/14 9:40 AM, David J Taylor wrote:
>> From: Jim Lux
>> Right now, the EOT is changing almost 30 seconds/day, which implies that
>> the clock could be some seconds off during part of the day (although
>> "true" at noon).
>> []
>> 
>> 30 seconds/day?
>> 
>>  http://www.sundials.co.uk/pix/c/eot3.gif
>> from:
>>  http://www.sundials.co.uk/equation.htm
>> 
>> 
> 
> http://www.wsanford.com/~wsanford/exo/sundials/equation_of_time.html
> 
> 
> 5 Jan 5.2 minutes
> 6 Jan 5.7 minutes
> 
> 30 seconds in a day..
> 
> The total variation over the year is +/- 15 minutes, but the derivative is a lot bigger at some times of the year (now)
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