The Tower of the Winds in Athens included both a sundial and a water clock for telling time. A canonical sundial is one that indicates the canonical hours of liturgical acts, and these were used from the 7th …

Feb 4, 2026 · Sundial, the earliest type of timekeeping device, which indicates the time of day by the position of the shadow of some object exposed to the sun’s rays. As the day progresses, the sun …

Feb 19, 2024 · Building a sundial in your backyard may be an enjoyable and instructive hobby. Here is a tutorial to assist you in creating your own makeshift sundial:

This is a complete listing of sundials in the North American Sundial Society Registry. Click on any dial thumbnail picture or city name to display the full dial listing and images.

A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the Sun casts a shadow from the gnomon, which is a thin rod straight edge, onto …

Nov 2, 2024 · A sundial operates based on the Earth’s rotation and the sun’s movement across the sky. The most essential component of a sundial is the gnomon, a stick or triangular object that casts a …

A detailed explanation of how sundials work, how to read a sundial and how to find North for setting up your own sundial.

Mar 31, 2025 · What is a sundial in simple terms? A sundial is a device that tells the time by using the position of the sun’s shadow cast by a stick (gnomon) on a flat surface.

A sundial has a thin rod called a gnomon, which creates a shadow on a marked platform with different times. As the sun moves throughout the day, the shadow of the rod also moves, showing the …

Jan 19, 2026 · Sundials have been used to measure time, based on the Sun, for thousands of years. This simple device can be made up of nothing but a flat dial and a gnomon (the “pointer” that casts …