The karakia happen when the star is in the sky and during the nights of Tangaroa on the Māori lunar calendar.
Puanga celebrations are similar to those of any northern hemisphere new year, happening in midwinter.
After the warm months of physical activity it is time to feed the mind and spirit, with stories about the previous year and plans for the coming one.
For Māori, people who have died in the past year are named, and their stories are told. Traditional waiata and moteatea are revived and genealogies are recited.
Food and giving also play a part, Twomey said.
"The storehouses have been filled and over-filled. This is a time of celebration with food, and a time of giving, because we have so much.
"Enjoying each other's company and having food is a large part of it."