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The command to set the system time is date. You need to be root to set the system time. date sets the time to the given time, not to a relative amount from the current time, because that latter behavior would be pretty pointless. You can build a command that modifies the current time by a relative amount by making a calculation on the output of date and ...


The system clock and the hardware clock are not the same. The command hwclock -r should show you the time the hardware clock is set to. If it is incorrect, use the command hwclock -w to update it when the time is correct. If you dual boot with windows, you will want to use local time. Otherwise, you may want to set the harward clock to UTC with the ...

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