Change the date and time in Windows 7

You may perform the following to change the date and time settings:
1. Right-click on the taskbar clock and click on Adjust Date/Time.
2. From the Date and Time dialog box, click on Change date and time... (If you are prompted for an administrator password or confirmation, type the password or provide confirmation).
3. To change the date, under Date: click on a date from the calendar. You may also click on the left and right arrows to make month selections.
4. To change the time, in Time: under the clock, change the time.
5. Click OK.