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Examples
# Set the system time ahead 1 hour for the period between 06:00:00 on 08/01 and 06:00:00 on
09/01.
<Sysname> system-view
[Sysname] clock summer-time PDT 6 08/01 6 09/01 1
Related commands
•
clock
protocol
•
clock timezone
•
display clock
clock timezone
Use
clock timezone
to set the local time zone.
Use
undo clock timezone
to restore the default.
Syntax
clock timezone
zone-name
{
add
|
minus
}
zone-offset
undo clock timezone
Default
The local time zone is the UTC time zone.
Views
System view
Predefined user roles
network-admin
Parameters
zone-name
: Specifies a time zone by its name, a case-sensitive string of 1 to 32 characters.
add
: Adds an offset to the UTC time.
minus
: Decreases the UTC time by an offset.
zone-offset
: Specifies an offset to the UTC time, in the format
hh:mm:ss
. The
hh
value is in the range of 0
to 23, the
mm
value is in the range of 0 to 59, and the
ss
value is in the range of 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.
Usage guidelines
The local time zone, together with the UTC time and daylight saving time, determines the system time.
You can use the
display clock
command to view the system time.
A correct system time setting is essential to network management and communication. Set the system time
correctly or use NTP to synchronize your device with a trusted time source before you run it on the
network.
Examples
# Set the name of the local time zone to
Z5
, and add 5 hours to the UTC time.
