Disabling The Daylight Saving Time Adjustment; Clearing The Time Zone - Cisco WS-C6506 Software Manual

Chapter 34 Configuring NTP
To enable the daylight saving time adjustment to a nonrecurring specific date, perform this task in
privileged mode:
Task
Step 1 Enable the daylight saving time adjustment.
Step 2 Verify the configuration.
This example shows how to set the nonrecurring daylight saving time adjustment on April 30, 1999 at
11:32, ending on February 1, 2003 at 12:02 a.m., with an offset of 50 minutes:
Console> (enable) set summertime date apr 13 2000 4:30 jan 21 2002 5:30 1440
Summertime is disabled and set to ''
Start : Thu Apr 13 2000, 04:30:00
End
Offset: 1440 minutes (1 day)
Recurring: no
Console> (enable)

Disabling the Daylight Saving Time Adjustment

To disable the daylight saving time adjustment, perform this task in privileged mode:
Task
Step 1 Disable the daylight saving time adjustment.
Step 2
Verify the configuration.
This example shows how to disable the daylight saving time adjustment:
Console> (enable) set summertime disable Arizona
Summertime is disabled and set to 'Arizona'
Console> (enable)

Clearing the Time Zone

To clear the time zone settings and return the time zone to Coordinated Universal Time (UTC), perform
this task in privileged mode:
Task
Clear the time zone settings.
This example shows how to clear the time zone settings adjustment:
Console> (enable) clear timezone
Timezone name and offset cleared
Console> (enable)
OL-8978-04
: Mon Jan 21 2002, 05:30:00
Command
set summertime date month date year hh:mm
month date year hh:mm offset
show summertime
Command
set summertime disable [zone_name]
show summertime
Command
clear timezone
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
Configuring NTP on the Switch
34-7