In parts of the Torah portion Noach ("Noah") (specifically, Gen 7:11, 8:3–4, 8:13–14) it is implied that the months are thirty days long.
U dijelovima Tore koji se bave Noom (konkretno Postanak 7:11, 8:4-5 i 8:13-14), implicirano je da su mjeseci dugi trideset dana.