Jewish New Year festival, marked by the blowing of the horn (shofar) which begins the ten days of
penitence culminating in Yom Kippur (Day of Atonement). It is the beginning of the holiest time of
the year for Jews, and the anniversary of the creation of the world.
Details from: https://www.faithvictoria.org.au/images/2022-multifaith-calendar.pdf