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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: First Sunday in April
•
End: Last Sunday in October
•
Time: 2 am local time
•
EU rule for daylight saving time:
•
Start: Last Sunday in March
•
End: Last Sunday in October
•
Time: 1 am (01:00)
•
The following steps must be completed before setting the summer clock:
Configure the summer time.
a
Define the timezone.
b
Set the clock. For example:
c
console(config)# clock summer-time recurring usa
console(config)# clock timezone 2 zone TMZ2
console(config)# clock set 10:00:00 apr 15 2004
Examples
The following example sets summer time starting on the first Sunday in April at 2 am and finishing
on the last Sunday in October at 2 am.
console(config)# clock summer-time recurring first sun apr 2:00
last sun oct 2:00
sntp authentication-key
The sntp authentication-key Global Configuration mode command defines an authentication key
for Simple Network Time Protocol (SNTP). To remove the authentication key for SNTP, use the no
form of this command.
76
Clock
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