I want to send current date and time from mobile app(like nrf connect app) to STM32WB via BLE. Need to set that received time to RTC. From that time, RTC should update the date and time continuously. I don't know how to set that received time to RTC. Or else can we read current date and time from RTC without setting it manually in cubeMX and without any external hardware modules? is there any other methods? Ultimately, I need to add a timestamp with my existing continuous data packet. Can anyone help me to do this?