Ji Lee's redundant clock tells time telling time. Also, some children no longer learn how to read an analog clock. Also, redundant clock is not to be confused with a recursive clock:
FYI, if you missed Ji Lee's Kickstarter for his redundant clock, they all shipped last year. There seem to be some knockoffs on Amazon and eBay, but I won't link to them because they look a little sketchy.
Head over to PLeaseEnjoy.com for more of Ji Lee's wonderful work.