Here we would like to draw your attention to STZBC transaction code in SAP. As we know it is being used in the SAP BC-SRV (Basis Services / Communication Interfaces in Basis) component which is coming under BC module (BASIS).STZBC is a transaction code used for Maintain time zones in Basis Cust. in SAP.
It comes under the package SZTZ.
Transaction STZBC technical data table
|Purpose||Maintain time zones in Basis Cust.|