The rut starts the same time every year, it has to do with the amount sunlight decreasing.

Why the Drury's love to hunt Nov 8th. Now the amount of does coming into heat varies in areas. Mut right around Nov 14th and 15th is the peak.

If I were to use my stats it would be 28th or 29th of Oct. I have shot 3 of my biggest buckson those days. Each time a doe was in heat early. Your best bet is to be in a tree and hope a doe comes into heat early