It supports nowadays

const utcDate = '2024-12-09T02:03:30.419+02:00'

const now = DateTime.fromISO(utcDate, { locale: 'he' }).setZone(DEFAULT_TIMEZONE)

const startOfWeek = now.startOf('week', { useLocaleWeeks: true }).toISO()
const endOfWeek = now.endOf('week', { useLocaleWeeks: true }).toISO()