Gnomon

A horizontal sundial. The shadow is true.

Latitude 45.0° N

Solar Time

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Clock (UTC)

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Solar Altitude

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Sun Azimuth

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Declination

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Hora fugit — the hour flees. Set your latitude, watch the shadow. At solar noon the gnomon's shadow falls due north (in the northern hemisphere). Equation of time not applied; this is apparent solar time.