Global Deployment Guide > Deploying with Global Time Zone > Converting Historical Data to UTC >

Performing UTC Delta Conversion

You may want to perform a UTC delta conversion if you have upgraded to Siebel Business Applications, Release 7.0.x, performed the UTC conversion, and then upgraded to the current version of Siebel Business Applications. Completing this task converts the data in columns that changed from non-UTC to UTC in the Siebel Repository.

To perform the UTC delta conversion

1. Open SIEBEL_ROOT\DBSRVR\DB_PLATFORM\master_utc.ucf, where DB_PLATFORM is DB2UDB, DB2390, MSSQL, or ORACLE.
2. In master_utc.ucf, replace all occurrences of driver_utc.ucf with driver_utc_delta.ucf.
3. Launch the Database Server Configuration Utility to run the UTC conversion utility, as described in Running the UTC Conversion Utility.