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Device management commands
clock datetime
Use clock datetime to set the system time.
Syntax
clock datetime time date
Default
The system time is UTC time 00:00:00 01/01/2011.
Views
User view
Predefined user roles
network-admin
Parameters
time: Specifies a time in the hh:mm:ss format. The value range for hh is 0 to 23. The value range for
mm is 0 to 59. The value range for ss is 0 to 59. The leading zero in a segment can be omitted. If the
seconds segment is 0 (hh:mm:00), you can omit it. If both the minutes and seconds segments are 0
(hh:00:00), you can omit both of the segments. For example, to specify 08:00:00, you can enter 8.
date: Specifies a date in the MM/DD/YYYY or YYYY/MM/DD format. The value range for YYYY is
2000 to 2035. The value range for MM is 1 to 12. The value range for DD varies by month.
Usage guidelines
Correct system time is essential to network management and communication. You must configure
the system time correctly before you run the device on the network.
For the device to use the local system time, execute the clock protocol none command and this
command in turn. The specified system time takes effect immediately. Then, the device uses the
clock signals generated by its built-in crystal oscillator to maintain the system time.
Examples
# Set the system time to 08:08:08 01/01/2015.
<Sysname> clock datetime 8:8:8 1/1/2015
# Set the system time to 08:10:00 01/01/2015.
<Sysname> clock datetime 8:10 2015/1/1
Related commands
clock protocol
clock summer-time
clock timezone
display clock
clock protocol
Use clock protocol to specify the system time source.
Use undo clock protocol to restore the default.
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