Twelve cards mark the clock face, each starting its own suited foundation. Forty more cards lie face up in eight columns of five. There is no stock.
The clock counts upward
Add the next rank of the same suit to a clock pile, wrapping from king to ace when needed. Tableau columns build down by rank regardless of suit, and only individual exposed cards move. Any card can fill an empty column. Win by moving all tableau cards onto the clock.
Check every place on the dial
Several clock piles share a suit but start at different ranks. Scan the whole dial before burying a card in the tableau. When two cards fit the same column, favor the move that frees another card for the clock. A spare column can help lift a blocker, but it is most useful with a specific card in mind.