This “Sundial” was incorporated at the late stage of “The Colony” as part of EXPO 1 NY at MOMA PS1 in 2013.
 
In the study of sundials one will find evidence of very early understanding of the fundamental relationship to astronomy. This ancient practice was an important part of human history at a time when observation was the only way to recognize the passage of time and the understanding of seasons.
 
This sundial uses the principles of a vertical declining dial, in this case without a “Gnommon” (the raised part of a sundial that casts the shadow). The sundial is thus based in observation and notation rather than mathematical calculations.

Using the four structural walls of the Colony as the gnomon, casting shadows as the day progresses, the reading tool of the dial is the architecture itself. 

Hour lines were marked on a circular wooden plate for each hour of sunlight, and flat metal bars where added to mark the hour lines on smaller circles at the end of the bars with the correspondent hour of the day.