If you have some nice buds and about 70degree temps with 50-55% RH then probably about a week. Once the thinnest little branch cracks but the thick ones are still bendy is when I stop drying and start my cure. The buds have to be at 55% inside your jars/container/turkey bag, whatever way you dry/cure
Everything I read says jars should be kept 60 to 65%. This is what I do. I have finally figured out how important the cure actually is, so i wouldn't advise rushing it.