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Using the Graph of the Equation of Time
The vertical lines on the graph represent the first and 15th of each month, you'll have to guestimate today's date on that scale and move that point up, until you intersect the wavy line, move that height
over to the scale on the left. You will have to guestimate again how many minutes to either add or subtract to the time that the dial indicates.
The long lines on the sundial face are the hour lines and the short ones are half hour lines. You will have to do a little guessing and approximating when reading the time from the gnomons shadow, with a
littler practice you will get good at it.
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