A gilded clock is a piece of furniture that can be built in the bedroom of a player-owned house with the Construction skill. It requires 85 Construction, 2 mahogany planks, 1 gold leaf and 1 clockwork to build. When built, it earns the player 602 experience.
The only purpose for clocks is aesthetics. Additionally the first selection of the clock's menu is Read Clock which will tell the minute of the hour within five minute increments (e.g., "It's a quarter past Rune" or "It's twenty to Rune"). The hour is never displayed.