​GAHANBAR, festivals of the ancient Avesta calendar celebrated by the Parsees at six seasons of the year which correspond with the six periods of creation: (1) Maidhyozaremaya (mid spring), (2) Maidhyoshema (midsummer), (3) Paitishahya (season of corn), (4) Ayathrema (season of flocks), (5) Maidhyarya (winter solstice), (6) Hamaspathmaedha (festival of sacrifices).