...

### Find the desired timezone
[root@localhost ~]# timedatectl list-timezones

### Confirm current timezone
[root@localhost ~]# date
Sat Apr 22 01:05:47 EDT 2017

### Change to desired timezone
[root@localhost ~]# timedatectl set-timezone UTC

### Verify
[root@localhost ~]# date
Sat Apr 22 05:06:04 UTC 2017

OMK Applications

By default OMK applications will use the timezone that the server has been provisioned for.  To change the time that OMK applications use to display data, opCommon.nmis needs to be udpated.  Any timezone name from one of the following sources may be selected.

• ISO 8601
• Olson Database - https://en.wikipedia.org/wiki/Tz_database
• or the name 'local'

Insert a key called 'omkd_display_timezone' in the omkd section.  Associate the desired timezone name with it as show below.

 -- snip
  'omkd' => {
    'load_applications' => [
      'Open-AudIT',
      'opCharts',
      'opEvents',
      'opConfig',
      'opReports',
      'opFlow'
    ],
    'omkd_asset_dir' => '/omk/dist/',
    'omkd_display_timezone' => "UTC",
    'omkd_asset_minified' => 0,
    'omkd_auto_detect_language' => 1,
    'omkd_default_language' => 'en',
    'omkd_heartbeat_timeout' => 300,
    'omkd_inactivity_timeout' => 300,
    'omkd_listen_address' => '*',
-- snip

This method currently works for all OMK modules except Open-AudIT Enterprise.