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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-29225-01
Chapter 5 Administering the Access Point
Managing the System Time and Date
The minutes-offset variable in the clock timezone global configuration command is available for those
cases where a local time zone is a percentage of an hour different from UTC. For example, the time zone
for some sections of Atlantic Canada (AST) is UTC-3.5, where the 3 means 3 hours and .5 means 50
percent. In this case, the necessary command is clock timezone AST -3 30.
To set the time to UTC, use the no clock timezone global configuration command.
Configuring Summer Time (Daylight Saving Time)
Beginning in privileged EXEC mode, follow these steps to configure summer time (daylight saving time)
in areas where it starts and ends on a particular day of the week each year:
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
clock timezone zone hours-offset
[minutes-offset]
Set the time zone.
the wireless device keeps internal time in universal time coordinated
(UTC), so this command is used only for display purposes and when the
time is manually set.
• For zone, enter the name of the time zone to be displayed when
standard time is in effect. The default is UTC.
• For hours-offset, enter the hours offset from UTC.
• (Optional) For minutes-offset, enter the minutes offset from UTC.
Step 3
end Return to privileged EXEC mode.
Step 4
show running-config Verify your entries.
Step 5
copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
clock summer-time zone recurring
[week day month hh:mm week day month
hh:mm [offset]]
Configure 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 (Sunday, Monday...).
• (Optional) For month, specify the month (January, February...).
• (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 Return to privileged EXEC mode.