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To change the date and time on centos machine via command line, try running this command.

timedatectl set-time "13:25:00" --------> to Change time Alone
timedatectl set-time "YYYY-MM-SS" ----------> To Change Date only.

To set both the date and time permanently in linux,then this is the command to run

timedatectl set-time "YYYY-MM-SS HH-MM-SS"