My Ali Express WiFi clock arrived at lunchtime:
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I hadn't expected it would be a kit! 4 bits of transparent plastic, the actual working bit and some stand offs and screws. I think I know why the Chinese are so clever, there were no instructions and I expect it would have taken a Chinese toddler 5 minutes but I took half an hour.Anyway, plug if in (you need your own USB lead and power supply) and it sprang into life. I managed to follow the instruction on the web page to connect to its built in server to give it my WiFi details (presumably now stored in the Chinese equivalent of the Kremlin) whereupon it put itself to the correct time, presumably in China - the minutes were correct but the hour miles out.
I had a devil of a job setting the time zone. It was set to 0 but refused to change. Long story short, change it to something else then back to 0 and you're in business.
I paid around £10 (it's shown at a higher price now) and if it continues to work that is a bargain in my book.