What happens if Rosh Hashanah or Yom Kippur falls on Shabbat?

Here's what you need to know

When Rosh Hashanah or Yom Kippur falls on Shabbat, the services incorporate elements of both the holiday and Shabbat. The prayers and rituals are adjusted to reflect the sanctity of both occasions.

The specific rule is

If Rosh Hashanah or Yom Kippur falls on Shabbat, follow the special prayer services that combine elements of both the holiday and Shabbat. This includes additional prayers and specific Torah readings.

Background

Rosh Hashanah and Yom Kippur have unique liturgical elements that are combined with the regular Shabbat prayers when they coincide. For instance, the Amidah (standing prayer) includes both Shabbat and holiday themes. The Torah readings are specific to the holiday, but the additional prayers and customs of Shabbat, such as the recitation of 'Shalom Aleichem' and 'Eishet Chayil' on Friday night, are also observed. The shofar is not blown on Rosh Hashanah if it falls on Shabbat, due to rabbinic decree to prevent carrying it in a public domain.

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