Command Reference Guide

System Time and Date | 1437
Syntax
clock timezone
timezone-name offset
To delete a timezone configuration, enter no clock timezone.
Parameters
Default
Not configured.
Command Modes
CONFIGURATION
Command
History
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,
you must include the differentiator between UTC and your local timezone. For example, San
Jose, CA is the Pacific Timezone with a UTC offset of -8.
clock update-calendar
c e s
Set the switch hardware clock based on the software clock.
Syntax
clock
update-calendar
Defaults
Not configured.
Command Modes
EXEC Privilege
Command
History
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 (that is, there is not a “no” form of this
command).
Related
Commands
timezone-name
Enter the name of the timezone. You cannot use spaces.
offset
Enter one of the following:
• a number from 1 to 23 as the number of hours in addition to UTC for the
timezone.
• a minus sign (-) followed by a number from 1 to 23 as the number of
hours
Version 8.3.7.0 Introduced on S4810
Version 7.6.1.0 Support added for S-Series
Version 7.5.1.0 Support added for C-Series
pre-Version 6.1.1.0 Introduced for E-Series
Version 7.6.1.0 Support added for S-Series
Version 7.5.1.0 Support added for C-Series
pre-Version 6.1.1.0 Introduced for E-Series
calendar set Set the hardware clock.