Function utcOffset

docs/tests/v2/es6/js/sanddance.js:92324–92326

(unit, date, step)

}

function utcOffset(unit, date, step) {
  return offset(utcInterval(unit), date, step);
}

function sequence(ival, start, stop, step) {
  return ival ? ival.range(start, stop, step) : undefined;