I can't answer your question...sorry
But, I am also curious...as I grew up in the Northern Hemsiphere I am used to hearing/using this terminology...many came from American Indian associations...i.e. Feast of the Hunter's Moon was a big "time" when trappers/explorers gathered one last time before winter (at least that is the story told near West Lafayette, Indiana) and is still a big deal today as many people gather in period costume to recreate the event...
I've even participated myself as an aide in "courting" my wife...long story that I will summarize with saying zippers were not "allowed" on costumes of the period only buttons or ties...but that is another story...
Would be good to know and SH counterparts...