Users Guide

• a number from 1 to 23 as the number of hours in addition to universal time
coordinated (UTC) for the timezone.
• a minus sign (-) then a number from 1 to 23 as the number of hours.
Defaults Not congured.
Command Modes CONFIGURATION
Supported Modes All Modes
Command History
Version Description
8.3.17.0 Supported on the M I/O Aggregator.
Usage Information Coordinated universal time (UTC) is the time standard based on the International Atomic Time standard, commonly
known as Greenwich Mean time. When determining system time, include the dierentiator between UTC and your
local timezone. For example, San Jose, CA is the Pacic Timezone with a UTC oset of -8.
clock update-calendar
Set the switch hardware clock based on the software clock.
Syntax
clock update-calendar
Defaults Not congured.
Command Modes EXEC Privilege
Supported Modes All Modes
Command History
Version Description
8.3.17.0 Supported on the M I/O Aggregator.
Usage Information Use this command only if you are sure that the hardware clock is inaccurate and the software clock is correct. You
cannot delete this command (there is not a no form of this command).
Related Commands calendar set— sets the hardware clock.
ntp server
Congure an NTP time-serving host.
Syntax
ntp server {hostname | ipv4-address} [key keyid] [prefer] [version number]
Parameters
ipv4-address Enter an IPv4 address (A.B.C.D).
hostname Enter the hostname of the server.
key keyid (OPTIONAL) Enter the keyword key and a number as the NTP peer key. The range is
from 1 to 4294967295.
prefer (OPTIONAL) Enter the keyword prefer to indicate that this peer has priority over other
servers.
version number (OPTIONAL) Enter the keyword version and a number to correspond to the NTP
version used on the server. The range is from 1 to 3.
System Time 369