PICOs were planned to have it populated, but for some reason it did not go into production, but can be after market populated with the - now available - RTC xtal component. There is a(t least one) conversation out there about it: Real time clock on Pico (rev 1.4). How it works on Espruino-Wifi, I don't know.
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.
PICOs were planned to have it populated, but for some reason it did not go into production, but can be after market populated with the - now available - RTC xtal component. There is a(t least one) conversation out there about it: Real time clock on Pico (rev 1.4). How it works on Espruino-Wifi, I don't know.