That's an odd one - and you're sure you are up to date with all the JS software on your watch? Especially bootloader?
What time zone is the watch set for?
Can you find any way to reproduce it reliably, or does it only happen sometimes?
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
That's an odd one - and you're sure you are up to date with all the JS software on your watch? Especially bootloader?
What time zone is the watch set for?
Can you find any way to reproduce it reliably, or does it only happen sometimes?