HP Cisco Catalyst Blade Switch 3020 Cisco Catalyst Blade Switch 3020 for HP So - Page 106
Displaying the Time and Date Configuration, Configuring the Time Zone, show clock, detail
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Managing the System Time and Date Chapter 5 Administering the Switch Displaying the Time and Date Configuration To display the time and date configuration, use the show clock [detail] privileged EXEC command. The system clock keeps an authoritative flag that shows whether the time is authoritative (believed to be accurate). If the system clock has been set by a timing source such as NTP, the flag is set. If the time is not authoritative, it is used only for display purposes. Until the clock is authoritative and the authoritative flag is set, the flag prevents peers from synchronizing to the clock when the peers' time is invalid. The symbol that precedes the show clock display has this meaning: • *-Time is not authoritative. • (blank)-Time is authoritative. • .-Time is authoritative, but NTP is not synchronized. Configuring the Time Zone Beginning in privileged EXEC mode, follow these steps to manually configure the time zone: Step 1 Step 2 Command configure terminal clock timezone zone hours-offset [minutes-offset] Step 3 Step 4 Step 5 end show running-config copy running-config startup-config Purpose Enter global configuration mode. Set the time zone. The switch 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. Return to privileged EXEC mode. Verify your entries. (Optional) Save your entries in the configuration file. 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. 5-12 Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide OL-8915-01
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