Simple controls
Choose bullet, blitz and rapid presets or custom unequal times.
Use Clock84 as a chess game timer for casual play, training and tournament-like time controls.
Choose bullet, blitz and rapid presets or custom unequal times.
Supports Fischer increments, Bronstein delay, US simple delay and hourglass.
Features stage bonuses, move counters, pause, undo and keyboard controls.
For official tournaments, confirm the allowed timing device and rules with the organizer.
About privacy and browser storage →Start with a quick preset, or configure different opening times for White and Black. Set a per-move bonus, then choose Fischer increment, Bronstein delay, US simple delay, hourglass or no bonus.
Fischer adds seconds after a move. US delay gives each move a grace period before counting down. Bronstein refunds used seconds up to the delay cap. Hourglass transfers time between the players. The complete chess timing guide gives examples and comparisons.
Open the two-player chess clock, tap the clock after moving, pause when needed and use keyboard shortcuts on desktop. Additional stage time and manual adjustments are available for custom games.