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2.2.2. Changing the Time

To change the current time, run the following command as root:
date +%T -s HH:MM:SS
…where HH stands for an hour, MM is a minute, and SS is a second, all typed in a two-digit form. If your system clock is set to use UTC (Coordinated Universal Time), also add the following option:
date +%T -s HH:MM:SS -u
For instance, to set the system clock to 11:26 PM using the UTC, type:
~]# date +%T -s 23:26:00 -u
You can verify the current settings by running date without any additional argument.