function getSlotDate(dt, minutesFromMidnight, offset) {
  return new Date(
    dt.getFullYear(),
    dt.getMonth(),
    dt.getDate(),
    0,
    minutesFromMidnight + offset,
    0,
    0
  )
}
This date conversion was moved out of TimeSlots.js, to
allow for localizer override
@param {Date} dt - The date to start from
@param {Number} minutesFromMidnight
@param {Number} offset
@returns {Date}