Rosh Hashanah, the Jewish New Year, is called Yom Teruah in the Bible. It marks the beginning of the High Holy Days and starts a ten-day period of repentance that concludes with Yom Kippur. It also initiates the cycle of autumn festivals, including Sukkot, Shemini Atzeret (in Israel), and Simchat Torah. Celebrated in the late summer/early autumn, Rosh Hashanah is a significant religious observance in Judaism.
In 1929, Rosh Hashanah occurred on 5 October, the latest Gregorian date possible at the time.
In 1967, Rosh Hashanah occurred on 5 October, the latest Gregorian date possible at the time.
In 2013, Rosh Hashanah fell on 5 September, which is the earliest date it can occur according to the Gregorian calendar.
In 2043, Rosh Hashanah will occur on 5 October, which is the latest Gregorian date it can occur.
After 2089, differences between the Hebrew and Gregorian calendars will cause Rosh Hashanah to fall no earlier than 6 September.