The time on your computer is controlled by the operating system and the BIOS. The BIOS is a set of instructions that is run when your computer starts up. It controls basic operations like the display, the keyboard, and the time. The operating system is the software that you use to interact with your computer. It includes features like the desktop, the file system, and the time.

Windows

To change the time on a Windows computer, open the Control Panel. In Windows 10, this can be done by clicking on the Start menu and selecting Control Panel. In older versions …