How to modify the time in centos virtual machine

The one above shows the system time, and the one below shows the hardware time. Since I have modified them here, they are equally fast. If they are not equally fast, do as follows.

This is to change the system year, month, and day, and you can also change the hours, minutes, and seconds. Same command.

This is directly updated to the time in this time zone when there is a network connection.

This is to adjust the hardware time and system time to be the same.

This is to write the date into CMOS .

OK, it's done. You can now check whether your hardware time and system time are the same.

ps: The entire command must be entered under root privileges.

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