How should I manage my clock time across a whole xiangqi game?
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
Spend your time where the position actually branches, usually around the transition out of the opening and any sharp tactical moment, and move quickly through the parts that are close to routine. Keep a rough reserve for the endgame: even a completely won position still needs a handful of accurate moves to actually finish.
Why an even split across the game is the wrong target
Not every move deserves equal thought. Early developing moves and forced recaptures rarely reward five minutes of calculation, while a genuinely critical branch can easily be worth that much. Players who spend evenly tend to run short exactly when a real decision arrives, which is the worst possible time to be low on the clock.
Protecting the endgame specifically
Basic mates like a lone chariot against a bare general take only a few accurate moves, but a few moves still costs real time if you are down to seconds, and technique executed in a rush is where won games get thrown away. A rough personal rule, such as never letting your reserve drop below what a basic mate needs, prevents this without requiring exact bookkeeping mid-game.
Related questions
Does this change with an increment?
Yes, an increment reduces the danger somewhat since time is added back each move, but the same principle of front-loading thought onto critical moments still applies.
Should I ever deliberately play fast to build a time cushion?
In genuinely simple, forced positions, yes; banking time early for a complicated middlegame later is a reasonable trade.