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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Administering the Wireless Device
Managing the System Time and Date
4. show running-config
5. copy running-config startup-config
DETAILED STEPS
The first part of the clock summer-time global configuration 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 after
the ending month, the system assumes that you are in the southern hemisphere.
This example shows how to specify that summer time starts on the first Sunday in April at 02:00 and
ends on the last Sunday in October at 02:00:
AP(config)# clock summer-time PDT recurring 1 Sunday April 2:00 last Sunday October 2:00
If summer time in your area does not follow a recurring pattern (configure the exact date and time of the
next summer time events), follow these steps, beginning in privileged EXEC mode.
SUMMARY STEPS
1. clock summer-time zone date [month date year hh:mm month date year hh:mm [offset]]
or
clock summer-time zone date [date month year hh:mm date month year hh:mm [offset]]
2. end
3. show running-config
4. copy running-config startup-config
Command Purpose
Step 1
configure terminal Enters global configuration mode.
Step 2
clock summer-time zone recurring
[week day month hh:mm week day month
hh:mm [offset]]
Configures summer time to start and end on the specified days every year.
Summer time is disabled by default. If you specify clock summer-time
zone recurring without parameters, the summer time rules default to the
United States rules.
• For zone, specify the name of the time zone (for example, PDT) to be
displayed when summer time is in effect.
• (Optional) For week, specify the week of the month (1 to 5 or last).
• (Optional) For day, specify the day of the week (for example,
Sunday).
• (Optional) For month, specify the month (for example, January).
• (Optional) For hh:mm, specify the time (24-hour format) in hours and
minutes.
• (Optional) For offset, specify the number of minutes to add during
summer time. The default is 60.
Step 3
end Returns to privileged EXEC mode.
Step 4
show running-config Verifies your entries.
Step 5
copy running-config startup-config (Optional) Saves your entries in the configuration file.
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