If the update task is taking approximately 30 minutes to complete, we can look in the log file at the same Miscellaneous Events document to get a picture of why it? S taking so long.
This may be as simple as printing out the configuration tree (and source location(s)) at startup, although this can be lost quickly in long running systems.
In this scenario, ill-written software itself intended to patch the Y2K glitch might go overboard and read an intentional 9999 end-of-file value as a date and convert it into an explicit 1999 date.