Here we would like to draw your attention to STZBD 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).STZBD is a transaction code used for Display time zones (Basis Cust.) in SAP.
It comes under the package SZTZ.
Transaction STZBD technical data table
|Purpose||Display time zones (Basis Cust.)|