Since the new Daylight Saving Time will be in effect in March 2007, lots of people are concerned about if this will affect Symantec NetBackup. The answer is YES. Here is a response from Symantec on the issue:

http://support.veritas.com/docs/286497

Since the start dates for DST vary each year, these steps will need to
be repeated each year to ensure DST occurs on the correct dates.

This should be enough to address the concerns :)