On The Clock is a trick-taking game where players are bidding on items from the "oBoy" online auction site. Once an item is up for auction, players will engage in a "must follow" trick-taking mini game to determine who will be "On The Clock".
The "On The Clock" player will be the one who played the highest value of the Lead Currency. Every other player will then have an opportunity to "snipe" that bid by playing a card of a different currency ("must not follow").
Each other currency has a set value modifier. The "On The Clock" player has a final opportunity to take the bid by playing another card of the Lead Currency to add to their current bid value.
The game ends after 3 rounds. Players will then score points based on the number of items they won during bidding, plus bonus points for owning a complete set of the three types of items on offer.
—description from the designer