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5. CLI Commands
clock set
Use the clock set command to configure the system date and time. This command is applicable only if clock source is set
to RTC. Note that this command may terminate all sessions as the system undergoes synchronization. Use the force option to
execute the command without confirmation. If the time format being used contains a space (for example, h:mm:ss tt), ensure
that the entire time period is bookended in quotes. Example: “10:11:22 PM”
Syntax
clock set <date> <time> [force]
• date – Specifies the current date, in the format selected using the default date-format or default user date-format
command.
•
time – Specifies the current time, in the format selected using the default time-format or default user time-format command.
Example
The following command sets the time and date of the system as 1/8/2020, 3:58 PM; a confirmation will appear when
entered:
console> clock set 1/8/2020 “3:58:00 PM”
Modifying system time settings may end this and other active user sessions. Type “yes”
to proceed:
clock source
Use the clock source command to select one of two options as the clock source. The available choices are NTP (Network
Time Protocol) and RTC (Real Time Clock). If NTP is selected as the clock source, an NTP server address must be specified
(using the clock ntpserver command). Note that this command may terminate all sessions as the system undergoes
synchronization. Use the force option to execute the command without confirmation.
Syntax
clock source {ntp | rtc} [force]
Example
The following command sets NTP as the clock source, without a confirmation prompt:
console> clock source ntp force
Update complete
show clock
Use the show clock command to display the current clock settings.
Syntax
show clock [ntpserver | source | timezone]
Example
The following command displays all clock settings:
console> show clock
Primary Server : 0.pool.ntp.org
Secondary Server : 1.pool.ntp.org
Source : ntp
Time Zone : America/Chicago
Current UTC Date and Time : 3/30/2020 12:45:10 PM
Current Local Date and Time : 3/30/2020 4:45:10 PM
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