What are the fashion rules for wearing white at different times of the year?

Everyone’s heard “No white after Labor Day.”

To what does this refer? Shoes, definitely, right? And probably pants. What about skirts and dresses? Coats? Shirts?

And this ends on Memorial Day, correct?

So you are only supposed to wear white between Memorial Day and Labor Day of each year?

Does this change if you are in a warmer environment?

I am going to Southwest Florida tomorrow for a week-long conference, and I’m trying to pack the right clothes. I’ll need a lot of sundresses and cute business-casual outfits.

I’d like to bring this one white dress. It’s short, but a bit dressy. Is this OK to wear since it is 2 weeks until Memorial Day and in hot hot Florida? What about shoes? Can I wear white shoes with it, or do I need to accessorize it with a different color so I can wear shoes that are not white?