The Shofar's Ritual Occasions and Required Counts

The shofar is sounded most centrally on Rosh Hashanah, the Jewish New Year, where Jewish law traditionally requires a minimum specific number of blasts, typically counted as a hundred over the course of the observance, combining tekiah, shevarim and teruah in prescribed sequences repeated across different points in the service, a requirement detailed and elaborated across centuries of rabbinic legal discussion concerning exactly how each blast must sound to be considered valid and how errors in a sequence should be corrected. The shofar is also sounded at the conclusion of Yom Kippur, the Day of Atonement, where a single long tekiah gedolah, an extended sustained blast held as long as the breath allows, traditionally marks the close of the fast and the day's concluding service, a moment widely experienced within congregations as one of the most emotionally significant points in the entire Jewish liturgical year.

Beyond these central occasions, shofar blasts have historically served other communal signaling functions in some communities, including marking the start of the Sabbath or announcing significant events, though these secondary uses have become less common as other means of communication and timekeeping developed, leaving the shofar's primary living use concentrated on the High Holy Days it remains most closely associated with today.