I have a dual-boot computer that boots Ubuntu and Windows 7. Whenever I boot into Ubuntu, the BIOS clock is automatically set to UTC time, even though my current timezone is UTC+8.

Ubuntu Linux distribution, by default, disables the root account. To run a command with root privileges, sudo has to be used before the command.

On a typical Fedora installation, you are asked for a root password and you will given an option to create accounts for normal users.

On the other hand, Ubuntu only allows account creation for normal users, root logins are disabled by default.