How to use the d3-time.utcYear function in d3-time

function formatUTCWeekNumberISO(d, p) {
  var day = d.getUTCDay();
  d = (day >= 4 || day === 0) ? utcThursday(d) : utcThursday.ceil(d);
  return pad(utcThursday.count(utcYear(d), d) + (utcYear(d).getUTCDay() === 4), p, 2);
}

return function(date) {
    var d = +date;
    return (d3_time.utcSecond(date) < d ? formatMillisecond
        : d3_time.utcMinute(date) < d ? formatSecond
        : d3_time.utcHour(date) < d ? formatMinute
        : d3_time.utcDay(date) < d ? formatHour
        : d3_time.utcMonth(date) < d ?
          (d3_time.utcWeek(date) < d ? formatDay : formatWeek)
        : d3_time.utcYear(date) < d ? formatMonth
        : formatYear)(date);
  };
}

function formatUTCWeekNumberSunday(d, p) {
  return pad(utcSunday.count(utcYear(d) - 1, d), p, 2);
}

function formatUTCDayOfYear(d, p) {
  return pad(1 + utcDay.count(utcYear(d), d), p, 3);
}

function formatUTCWeekNumberMonday(d, p) {
  return pad(utcMonday.count(utcYear(d) - 1, d), p, 2);
}