Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Keil/AT32F415xx_v2/ERTC/TSTM#0x0
time stamp time register
Second units
Second tens
Minute units
Minute tens
Hour units
Hour tens
AMPM
https://github.com/cmsis-svd/cmsis-svd-data