text: 'use strict'
  
  const consts = {
    DATE: 'YYYY-MM-DD',
    TIME: 'HH:mm',
    DATE_REX: /^(\d{2,4})-(\d{1,2})-(\d{1,2})$/,
    TIME_REX: /^(\d{1,2}):(\d{1,2})$/,
    DAY: 'day',
    WEEK: 'week',
    MONTH: 'month',
    END: 'end',
    PAUSE: 'pause'
  }
  
  module.exports = consts
  