The datasheet says "
For adjusting the real-time clock (*RTC"), the easiest method is to download the BME688 Development Kit App from
https://www.bosch-sensortec.com/software-tools/software/BME688-software,
install it on your phone and connect the BME688 Development Kit by BLE."
But I don't see anything in the app that lets me set the clock.
It's not a gigantic deal, but all the samples have the wrong date/time associated with them.
If the app is not going to work, is there some other way to set the RTC on the board?