Hi Rabi,
As per my understanding there is no relationship between time of SAP system and Bio-metric System.
Because first Data is uploading into a Z table with the help of a custom program. In this Z table there is no created time.
TEVEN table is updating from this ZTable with the help of a custom program. So there is no direct relation between SAP standard Table ( TEVEN ) and Bio-metric system.
Thanks,
Muhammed Riyas V A