[Question] How could i change the timezone in iterator?

[wingleungchoi]

const start = ICAL.Time.fromString('2013-05-22T22:00:09Z')
const ruleString = 'FREQ=WEEKLY;BYDAY=MO;UNTIL=20141029T150006Z'
const recur = ICAL.Recur.fromData(ICAL.Recur._stringToData(ruleString'), true))
const iterator = recur.iterator(start)

iterator.next is finding Monday in UTC timezone. How could i change the timezone in iterator?