Vahman is one of the seven Amesha Spenta, or Holy Immortals, of Zoroastrianism. Vahman's Avestan name is Vohu Manah, Vahman or Bahman are Pahlavi renderings. Vahman is creator of the primal bull, all cattle and animal life. Vahman is believed in as patron of business and purposefulness. As with all Zoroastrian months, the month of Vahman is thirty days long. Various Zoroastrian communities align their calendars differently with the Gregorian calendar and the natural year. The date ranges of the month of Vahman in the three calendars are as follows: