const millisecond = 1.0 / 31556952000.0
const second = 1.0 / 31556952.0
const minute = 1.0 / 525949.2
const hour = 1.0 / 8765.82
const day = 1.0 / 365.2425
const week = 7.0 / 365.2425
const fortnight = 14.0 / 365.2425
const month = 1.0 / 12.0
