Arris C4C - Set Timezone Offset; Disable Timezone Setting; Show Clock Detail; Show Clock Greenwich Mean Time

Chapter 36: Clock Synchronization Protocol
STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved. 983
29. US +550737-1313435 America/Metlakatla Metlakatla Time - Annette Island
30. US +211825-1575130 Pacific/Honolulu Hawaii
Please select a time zone location by line number:(1-30) 11
In this example, Chicago is selected. By requesting CLI help on the command, you can see how to configure the time offset
using Greenwich Mean Time:
configure clock timezone ?
WORD country name/zone location e.g. America/Chicago, or GMT offset e.g. GMT-6 <cr>
Set Timezone Offset
Use the following command to set the time zone offset in hours (and minutes, if applicable) from Greenwich:
configure clock timezone GMT[+|-hh[:mm]]
Disable Timezone Setting
Use the no form of the command to disable the time zone setting:
configure clock [no] timezone
Show Clock Detail
The following command displays the timezone abbreviation and the current DST/STD time status:
show clock detail
An output similar to the following example will occur:
2012 December 13 07:14:20 America/Chicago (STD)
Network time sync protocol is NTP
10.50.42.3 server unicast burst=off prefer=on minpoll=4 maxpoll=10 ver=4 key=0
C4/c CMTS (client) default values: minpoll=6 maxpoll=7 ver=4 auth=on
Show Clock Greenwich Mean Time
The following command displays the GMT:
show clock gmt
An output similar to the following example will occur: