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To make a calendar based on the numbering of weeks such as ISO week more interesting, the weeks can be labelled by playing cards rather than plain numbers.

In 1998, Karl Palmen thought of such a scheme. The 52 weeks of the years are divised into four seasons each represented by a suit: Clubs, Diamonds, Hearts and Spades in that order with a joker for the 53rd week in any year it occurs. The weeks within each season are labelled Ace, Two ...., Ten, Jack, Queen, King.

If the ISO weeks are used the deck is referred to as the ISO deck. Similarly, when applied to any other week numbering scheme, the deck takes the name of the scheme.

External Link

Karl Palmen's Playing Card Calendar

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