When you change the date on your computer, you are changing the date that your computer “thinks” is the current date. This can be useful for a variety of reasons, such as changing the date to reflect the current year in order to qualify for a discount or to make sure that your computer’s clock is accurately displaying the current time.

There are a few ways to change the date on your computer. One way is to use the date and time settings in the Control Panel. Another way is to use the date and time settings in the System …