Chess Clock Online: How It Works and How to Use It

A chess clock tracks the time each player has used in a two-player game, ensuring that neither player can stall indefinitely. Originally invented for competitive chess, it is now used in debates, Scrabble, Go, and any other activity where fair time allocation matters.

How a Chess Clock Works

A chess clock has two separate timers. When one player's time is running, the other is paused. After making a move, the active player taps their side of the clock, which stops their timer and starts their opponent's. This continues until one player's time reaches zero — or the game ends naturally.

Time Controls Explained

Chess tournaments use a variety of time controls:

Increment: Many formats add a few seconds back after each move (e.g. "10 minutes + 5 second increment") to prevent flagging on a winning position

Using ZaynClock's Chess Clock

ZaynClock offers three layout modes built specifically for different situations:

Stacked: One player at the top, one at the bottom — perfect for a phone lying flat on the table between two players

Side by Side (rotated): The top player's display is rotated 180° so both players can read their own time facing them

Parallel: Both clocks upright side by side, ideal for a landscape tablet or laptop screen

To start: set the time control, press Start, then tap your side of the clock after each move. ZaynClock plays a sound alert when time is low.

Beyond Chess

The same clock works for any turn-based activity: Scrabble, Boggle, classroom debates, interview practice, or any game that benefits from enforced time limits. Set equal or unequal times depending on the activity.

Chess Clock Online: How It Works and How to Use It

How a Chess Clock Works

Time Controls Explained

Using ZaynClock's Chess Clock

Beyond Chess

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