Product news: three magnetic rings can be joined in different configurations to display the date on this table calendar by South Korean designer Jeong Yong.
Each ring represents a different measure of time and the three values lined up at the point of intersection indicate the date and day of the week.
The largest ring has 31 units to mark the days of the calendar month, while the middle ring has 12 units for every month of the year and the smallest ring is labelled with the names of the days of the week.
Jeong Yong explains that while the two larger rings are based on the solar and lunar cycles, the third wheel is based on a division of time created by man. "The smallest ring with seven units represents the people who created the seven days of the week," he says.
Magnets are located behind each number or name, allowing the rings to join in any combination.
Earlier this year Yong also revealed designs for a CD player mounted like a globe.
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