Comment 9 for bug 604717

This debdiff adds an upstart job for ntp. Upstart job does the same thing SysV script does. In addition, it adds two features that are common requirement in production:

1) does one off sync before starting ntpd in foreground - off by default
2) syncs hardware clock after the one off sync - off by default

Many services, OpenStack's nova comes to mind, require time to be synced, rather ntpd started. By doing one off sync before starting ntpd, system will have correct time before nova-* services start. Nova service then needs to depend on started ntpd.

Hardware clock sync might be an overkill, but, IMHO, doing it right after we synced the OS time seems the best place to do it.