What to do when Rosh Hashanah falls on Shabbat and the shofar is not blown?

The Chief Rabbi of Israel, the Gaon Rabbi Kalman Bar, published halachic and practical guidance for Rosh Hashanah that falls this year on Shabbat. The guidance details the key changes in prayers, meals, and preparations for the second day of the holiday, and explains why the shofar is not blown on the first day due to the sanctity of Shabbat.

The Chief Rabbi of Israel, the Gaon Rabbi Kalman Bar, published halachic and practical guidance for Rosh Hashanah, which will fall this year on Shabbat. In his letter, the Rabbi addressed the special laws and customs that apply in this calendar setting, including the non-blowing of the shofar on the first day, changes in the prayer liturgy, the time for saying Tashlich, and preparations for the second day of the holiday. The Rabbi clarified that the Sages said, "Any year that does not begin with hardship will end with hardship," but in the name of the Baal Halachot Gedolot, he clarified that this does not apply to a year when the shofar is not blown due to the sanctity of Shabbat. The Rabbi brought the words of the Baal HaAruch LaNer, who noted that alongside difficult years when Rosh Hashanah fell on Shabbat, including the years of the destruction of the Temples, there were also particularly exalted years in this calendar setting: the year when the sin of the Golden Calf was atoned for, the year when the Tabernacle was established, and the year when the Children of Israel entered the Land. According to his explanation, when the shofar cannot serve as Israel's advocate—Shabbat itself becomes their advocate. The guidance details the order of laws and customs for the holiday eve, meals, prayers, sleep, and Tashlich, as well as the prohibition on preparing from Shabbat for the second day.