Found this on a react-motion issue. It will create a spring values based on duration for react-motion's spring.

configw.js

// tl;dr ...set the duration of a spring animation
export const configw = (sec, overdamping) => {
  const s = overdamping <= 0
    ? 1 - overdamping
    : 1 / Math.sqrt(1 + Math.pow(2 * Math.PI / Math.log(1 / (overdamping * overdamping)), 2))

  const ks = (2 * Math.PI / sec) / Math.max(Math.sqrt(1 - s * s), 0.5)
  const c = 2 * ks * s

  return [ks * ks, c]
}