The Inti Raymi or the sun festival was a Inca ceremony that was did annually in Cusco into the Tawantinsuyo capital, between the end of the harvest period and the beginning of winter equinox of the andes, in the second half of july month.
The Inti Raymi in Inca times were the equivalent to what if for today for us is the fest of new year. The celebration of the sun was a festivity in which is started the new year and finished all agricultural year before among the months of may or june, at the same time that it begins a new agricultural cycle from July, so that the period since the last week of June and the beginning of july was a transition lapse from old agricultural year to a new one, so the festivity was dedicated to this event.