Ashadar or time stick, Northern India, c. 1900.
This time stick from Darjeeling operates in the same way as a column sundial. It has eight sides, each of which is graduated in ghatis (of 24 minutes duration), and marked with the name of the month, four sides having two names. To find the time a metal style, or gnomon, is inserted into a hole at the top of the stick in line with the correct month. The stick is then turned to face the sun until the shadow of the gnomon falls straight down on the scale. The time is then indicated by the bottom edge of the shadow.
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