Mike, use the time/date control function:    timedatectl

type:  timedatectl      (for time and date info)

type:  timedatectl  set-time "2012-10-30 18:17:16"    ( to set date and time)

TIMEZONE setting:   timedatectl set-timezone  yourzone/subzone

                                Example:   timedatectl set-timezone  America/Chicago

Tom / K5TRA