i just came across this DIY project at IMGUR
https://imgur.com/gallery/iMXmj
and i was fascinated! i do not have the dexterity to manipulate wires, diodes, pegs, cogs, etc - and i doubt if i’ll ever be able to build a clock like that (physically)!
wouldn’t it be nice to have THAT on a mobile device? (hint, hint)
(edit. it turns out this was made specfically for the the author’s brother and his wife, Dean and Shelby.
you may keep them OR change them OR remove them OR rearrange them.)
edit. i came up with an alternate distribution in a 9x9 array that can handle all the common time expressions. (note; i’ve dropped happy birthday, dean,shelbey, it is, and oclock. just replace the blanks with any letter (they’re unused)