•
offset — Number of minutes to add during summer time (Range: 1 - 1440).
•
acronym — The acronym of the time zone to be displayed when summer time is in effect.
If unspecified default to the timezone acronym. (Range: Up to 4 characters)
Default Configuration
Summer time is disabled.
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: 1.00 am (01:00)
Example
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)
last sun oct 2:00
sntp authentication-key
The sntp authentication-key global configuration 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.
#
clock summer-time recurring first sun apr 2:00
103
Clock