The Chess Timer

Chess Clock Rules and Time Controls

Reference pages on chess clock rules and time controls. Every rule links to the official text, and the tables are free to cite with a link.

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FIDE vs US Chess (USCF) Clock Rules Compared

FIDE vs USCF rules for the chess clock, side by side with article numbers: blitz limits, delay vs increment, who calls a flag, insufficient material.September 28, 2026 · 15 min read