Telling time ::

I picked up V at 8:30pm Friday, we took our time for dinner, then went out for a coffee. She mentioned that she has an extremely accurate sense of what time it is, and speaking just as an example, said, “9:45, 10, 10:30, 10:37, 10:39.” Neither of us wear a watch or had any other way to know what time it was. On a whim I pulled out my cell phone. It was 10:38.