Fix System Clock To see the list of all available time zones:
timedatectl list-timezones | more
To set the timezone:
$ timedatectl set-timezone 'America/Chicago'
To verify you the currently set time zone
$ timedatectl
Reboot for the changes to take effect
Turning the power off without gracefully shutting down the Sonic Pad first will corrupt the filesystem. Do not use the power button on the side of the Sonic Pad.