The Dozenal Society of America (formerly The Duodecimal Society of America) is a voluntary non-profit organization that promotes the research and education of the public in the use of Base Twelve in numeration, mathematics, weights and measures, and other branches of pure and applied science.

"Dozenal", or base 12, is also known as "duodecimal".

Dozenal Society of America (http://www.polar.sunynassau.edu/~dozenal/)