The sundial of the present invention comprises a hemisphere with an inner groove formed in a concave curved surface and a rim plate formed at the entrance of the inner groove of the hemisphere, , A pulp diluted in water is formed by press molding in a mold, a groove groove corresponding to a season line expressing the 24th line and a visual groove corresponding to a visual line expressing the time line are formed in the inner groove, Formed during compression molding; An optical needle adhered and fixed to a visual point at which the visual groove of the normal state overlaps; And a pedestal on which the hemisphere of the active stage is raised and fixed.
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