Delta time to keep more accurate time.

setInterval() with delta time

// Save the current time in ms
let lastUpdateTime = Date.now()

setInterval(() => {       
  // get the current time in ms
  const now = Date.now()
  // calculate the delta time as difference between now and the last update
  const deltaTime = now - lastUpdateTime
  // Set the last update to now. 
  lastUpdateTime = now
  console.log(deltaTime); 
  // 
  store.dispatch( incrementAllTimers(deltaTime) ) // Call an update on the dispatcher
}, 500) // Updated happen approximately every half second