duodecimal number system

The duodecimal number system is a positional numeral system that uses 12 as its base. This means it requires 12 distinct symbols to represent numbers. While the familiar decimal system uses the digits 0 through 9, a duodecimal system would typically use 0-9, plus two additional symbols, often represented as 'A' for ten and 'B' for eleven.

The concept of using a base other than 10 is not new. Historically, various bases have been used, and vestiges of these systems remain in modern units, such as 12 inches in a foot or 12 months in a year. The duodecimal system, or base-12, is one such alternative to the more common decimal system.123