Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFR32FG12P/EFR32FG12P232F1024GL125/RTCC/CC2_DATE#0x0
Capture/Compare Date Register
Day of Month/week, Units
Day of Month/week, Tens
Month, Units
Month, Tens
https://github.com/cmsis-svd/cmsis-svd-data