In Backup Exec 2012 the backup size report on the home tab may show stats for the incorrect day.
The job starts on the current day, and then runs past midnight into the next day.
Backup Size Report may show the stats for following day's date. The server time zone is set to Eastern Standard Time(EST).
The job starts at midnight. Backup Size report may show the stats for previous day's date. The server time zone is set to Japan Standard Time(JST).
Backup Size Report calculates the amount of backup data with using the "start time" of the backup jobs in not the server time zone but Coordinated Universal Time(UTC).
This issue is resolved in Backup Exec 2014 or later versions.
To resolve this issue and receive the new Backup Exec improvements please upgrade to the current version of Backup Exec.
NOTE: Symantec continues to focus on the current release and future releases, there are no plans to address this issue by way of a patch or hotfix in earlier versions of the software at the present time. Please contact your Symantec Sales representative or the Symantec Partner for upgrade information including upgrade eligibility to the release containing the resolution for this issue. For information on how to contact Symantec Sales, please see http://www.symantec.com