To change your system date through Advanced Booting options, you first need to enter BIOS setup menu of your system. To enter BIOS setup menu and to change your system date, you can follow the instructions below:
1.Boot your system and enter BIOS setup menu using the designated key. Though the key to enter BIOS may vary depending upon the computer manufacturer, usually keys like Delete, F12, F10, and F2 are designated to enable a user to enter BIOS setup. To know how to identify the key your system is designated to enter BIOS setup, you can refer to the image under "Method 1 of 3: Enter the BIOS" section on the following webpage:
Following link is of a third-party website. We recommend you to update your security software thoroughly before clicking on the link.
2.As soon as you identify the BIOS setup key, strike it rapidly and repeatedly (while the booting is on) till the time you enter BIOS setup menu. You may get just a few seconds to do this. If you are not able to enter BIOS setup menu by pressing the key repeatedly, reboot your system and follow the same steps again to enter BIOS setup menu.
BIOS menu do not support mouse input. Hence, you will have to navigate through the menu using the arrow keys on your keyboard.
3.Once you enter BIOS setup menu, you can change the date of your system by going to "System Date" option. This option is generally located in the "Main" section of the menu.
The layout of BIOS menu varies from manufacturer to manufacturer but most of them share a few common settings. If you are not able to detect "System Date" option in the "Main" section of the menu, you may need to look into other sections to locate the option.
To get a pictorial explanation of the above steps, you can refer to the following link:
Hope this will resolve your issue.