What's the Proper Name for this Red Flower?

I have a thoughtful friend who plants 4 o'clocks around his mailbox post. He says they don't open up each day until after the mailman has gone through, so he isn't botherd by bees.

He collects the seeds each year and plants them the next spring.

4 o'clocks also come in an array of solid and varicgated colors. So maybe I'm mistaken.

If these are 4 o'clocks, you must live in a warm climate. Up north, we have to plant them anew each year. (The seeds are oval shaped, about 1/4 inch by 1/8 inch and turn black & have a hard shell.)

My guess would be 'Four o’clocks (Mirabilis jalapa)' If indeed this is what it is, it's also a hummingbird favorite. :-)