[time-nuts] Local Solar Time Clock

Jim Lux jimlux at earthlink.net
Sun Jan 19 18:05:07 UTC 2014


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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