" Remember is the last month,' said Festival.
'Remember's not a month.'
'Of course it is,' said Festival. 'There are twelve months thirty days long and the five days at the end of the year that are left over are called Remember. It's when we all remember what happened in the past year, all the people who were born and all the people who died. You have to have Remember, otherwise you'd start the next year out of balance. "

― , How to Live Forever