How to Read a Binary Clock
What is a binary clock? Before doing a web search I would have guessed this:

6:43 PM on my fake binary alarm clock (courtesy photo-editing software).
In other words, a regular digital clock, except with binary numerals instead of decimal numerals. But as far as I know, a clock like this doesn’t exist. If you search for “binary clock,” you get a clock of a different design, one like this: