I don't think there should be a specific time when it's "Okay" to put up lights.
Go for it.What if it's July?
Please, at least wait until after Nov 11th.
I decorate in early December. I did notice that the restaurant I was at tonight was playing Rudolph the Red Nosed Reindeer. The first Christmas carol of the year.
1 observance at a time...
I don't think there should be a specific time when it's "Okay" to put up lights. if someone really wants to put up lights, go right ahead. Who am I to rain on their festivities?