# startSimulation [Built-ins](README.md) ยท [Labs guide](../guides/labs.md) Canonical ID: `simulation.start`. Nederlands: `startSimulatie`. Starts the supplied simulation clock. It does not wait or advance time by itself. ## Signature ```text startSimulation(clock) ``` ## Return value and behavior A new clock Map with paused set to false. The helper returns a new value. Use set/zet when updating a variable; the earlier value stays unchanged. ## Example ```pliro # language: en let clock = startSimulation(simulationClock(0.1)) ```