Changing the date and time
The battery-operated clock keeps the date and time for the HMC. You might need to reset the console date and time if the battery is replaced, or if you physically move your system to a different time zone. Learn how to change the date and time for the HMC.
If you change the date and time information, the change does not affect the systems and logical partitions that the HMC manages.
To change the date and time for the HMC, do the following: