128 Clock
Default Configuration
Summer time is disabled.
offset — Default is 60 minutes.
acronym — If unspecified default to the timezone acronym.
If the timezone has not been defined, the default is UTC.
Command Mode
Global Configuration mode.
User Guidelines
• In both the
date
and
recurring
forms of the command, the first part of the command specifies when
summer time begins, and the second part specifies when it ends. All times are relative to the local time
zone. The start time is relative to standard time. The end time is relative to summer time. If the
starting month is chronologically after the ending month, the system assumes that you are in the
southern hemisphere.
• USA rule for daylight saving time:
• Start: Second Sunday in March
• End: First Sunday in November
• Time: 2 am local time
• EU rule for daylight saving time:
• Start: Last Sunday in March
• End: Last Sunday in October
• Time: 1.00 am (01:00)
Examples
The following example sets summer time starting on the first Sunday in
March
at 2 am and finishing on
the first Sunday in
November
at 2 am.
sntp authentication-key
The sntp authentication-key Global Configuration mode command defines an authentication key for
Simple Network Time Protocol (SNTP). Use the no form of this command to remove the authentication
key for SNTP.
Console(config)# clock summer-time recurring first sun mrch 2:00
first sun nov 2:00
book.book Page 128 Thursday, December 18, 2008 7:40 PM
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