Binary ...........................

...................clock.  8-inch x 8-inch x 2-inch wooden case.  Powered by an Arduino. 

The time is:  6:47 as displayed.  If you add up the vertical rows, you'll get 06 for hours and 47 for minutes.

b....bi.....bin.....binary...............

.......clock.   Arduino Uno powered.  Flashing vacuum tubes atop the clock to mark seconds.

At the tone...the time is:  18:48

There are LOTS of binary clock builds out 'there'.  In case you're curious, here's where I began:  http://www.instructables.com/id/LED-Binary-Clock-1/