Software

catclock

(1989)

A virtual Kit-Cat Klock

catclock

Also known as xclock

http://codefromabove.com/2014/05/catclock/
https://github.com/BarkyTheDog/catclock
http://decwarch.free.fr/clocks.html
http://decwarch.free.fr/images/catclock.html
https://cyber.dabamos.de/unix/x11/#xclock-cat