When did xiangqi tournaments start using clocks?
These answers restate the rules implemented by our open-source engine, which follows the WXF laws and is regression-tested against the official 110-diagram repetition casebook. Where an answer refers to a specific position, that position lives on the linked reference page, where the build verifies it against the engine before publishing.
Direct answer
In the twentieth century, as xiangqi competition became more formally organised. Park and teahouse play went (and largely still goes) without a clock, but as leagues, national championships and eventually the World Xiangqi Federation's events took shape, a timing mechanism became necessary for the same reason it did in chess: to stop a game running indefinitely and to make results comparable across an event.
Why this followed organisation rather than the other way round
A clock only matters once a tournament needs many games finished within a fixed schedule. Casual play, which is most of xiangqi's history, never needed one, since two players simply took turns for as long as they liked. Clocks arrived as a practical consequence of running competitions with multiple rounds and a venue booked for a set number of hours, not as an independent invention.
What did not need inventing
Unlike some aspects of xiangqi arbitration, the clock itself required no xiangqi-specific design. A standard mechanical, and later digital, chess clock times either game identically, which is why any chess clock still works for xiangqi today. See can you use a chess clock for xiangqi.
Related questions
Did park and teahouse play ever use clocks?
Rarely, and mostly not even today. That culture predates formal timing and has largely stayed clock-free.
Is the clock rule itself xiangqi-specific?
No. Once the tournament structure existed, standard chess timing equipment and conventions transferred over directly.
.