Collect the most Day cards across all rounds. Each round, players bid using Date cards from their hand, trying to get as close to the Month card's target (its number of days) as possible without going over.
Each player receives 7 Date cards and a personal Birthday card. Shuffle the 12 Month cards and place them face-down as the Month pile. Shuffle the 31 Day cards and place them face-down as the Day pile.
Flip the top Month card — its number is the target for this round. Each player secretly selects Date cards from their hand to bid, then all bids are revealed at the same time.
The winner is the player whose bid is closest to the target without exceeding it. Ties are broken in this order: highest bid → fewest cards used → most cards matching the month → draw a tiebreak card.
Birthday card — each player has one personal Birthday card showing their real birthday date. It can only be played once per game. Its day value counts towards your bid.
29 Feb — if the Month card is February and a player plays their 29 Feb Date card, they win the round instantly regardless of other bids.
The round winner flips Day cards one at a time. After the first card, they can keep what they have or guess whether the next card will be higher or lower. A wrong guess loses all cards flipped that turn — they're shuffled back into the Day pile. Correct guesses continue, up to a maximum of 3 Day cards per round.
Used Date cards go to the discard pile. Each player draws back up to 7 Date cards from the centre pile. If the centre pile runs out, shuffle the discard pile to refill it. Then flip a new Month card and repeat.
After the last round, the player with the most Day cards wins. If two or more players are tied, it's a draw.