const { DateTime } = require('luxon')
const dates = [
DateTime.fromISO('2017-12-10T00:00:00.000Z').endOf('quarter').toISO(),
DateTime.fromISO('2017-12-10T00:00:00.000Z').startOf('quarter').toISO(),
DateTime.fromISO('2017-12-10T00:00:00.000Z', {zone: 'utc'}).endOf('quarter').toISO(),
DateTime.fromISO('2017-12-10T00:00:00.000Z', {zone: 'utc'}).startOf('quarter').toISO()
]