I was trying to figure out at what point a 24-hour McDonalds switches over from serving burgers and fries to breakfast. . . would they still be serving fries at 3 a.m.? 4 a.m.? Dawn? Not mission critical for the short story I'm writing; I can work around it, but nice to know. On the theory that you can find out anything on the web, I went surfing.
Make that almost anything. Never found the answer to my question--I figure I'll drop by a McDonalds in person and ask. Have some fries while I'm there. But while I was looking, I found a site whole sole reason for existence is to help people locate restaurants, grocery stores, pharmacies, and other businesses that are open, if not 24 hours, then at least Very Late. My kind of people!