Gokulastami

Krishna Janmashtami, also known simply as Janmashtami or Gokulashtami, is an annual Hindu festival that celebrates the birth of Krishna, the eighth avatar of Vishnu. It is observed according to the Hindu luni-solar calendar, on the eighth day (Ashtami) of the Krishna Paksha (dark fortnight) in Shraavana or Bhadrapad (depending on whether the calendar chooses the new moon or full moon day as the last day of the month), which overlaps with August/September of the Gregorian calendar