The Commonwealth Games are coming to Melbourne in 2006. The time for
daylight savings in many states in Australia has been altered. This document
describes the impact of the change in daylight savings time on Optical
products, and provides a workaround.
In Australia, the end of the daylight savings time has been moved from
the last week of March to the first week of April. The implication of this
change is that instead of ending on Sunday, the 26th
of March, 2006 at 3:00AM, the daylight savings time will end on Sunday, the
2nd of April, 2006 at 3:00AM. This change applies
only for the year 2006. The change in daylight savings time affects these
states in Australia:
New South Wales
There are no specific requirements for this document.
The information in this document is based on these software and
The information in this document was created from the devices in a
specific lab environment. All of the devices used in this document started with
a cleared (default) configuration. If your network is live, make sure that you
understand the potential impact of any command.
Technical Tips Conventions for more information on document
All versions of the Cisco Transport Controller (CTC) provide you with
the ability to enable or disable Daylight Savings Time, and also to change the
time on your nodes.
In a situation where the dates are different from the defaults, as is
the case in Australia to accommodate the Common Wealth games, you must assume
manual control over the time settings, and make changes during the period when
the default behavior no long applies.
During the period between 26th March and
2nd April 2006, the system will automatically follow
the rules set for the previous daylight savings time. In other words, the
system will automatically modify the clock and reflect incorrect time, because,
on 26th March 2006, the system will automatically
presume that the daylight savings time has taken effect.
During this period, you need to assume manual control over the system
time and force the system clock to reflect the correct time at the start and
end of the period. Note that this problem does not apply if you use an NTP or
SNTP system that is updated to reflect the 2006 daylight savings time
Use this solution to solve the problem.
Use the capability to modify the system time, and reset the system
Manually disable the daylight savings time on 26th March,
Reset the system clock to reflect the correct
Enable the daylight savings time once again on
2nd April 2006, and ensure that the time is
Note: For more information on time zone configuration and how to reset
the time, refer to the relevant procedure guide for the Cisco ONS release that
you use. For example, if you use Cisco ONS 15454, refer to
ONS 15454 Procedure Guide, Release 7.0.