H3C Technologies H3C SecPath F1000-E - Manual (Page 198)

4
To do… Use the command… Remarks
Adopt daylight
saving time from the
start-time on the
start-date to the
end-time on the
end-date. Daylight
saving time adds the
add-time to the
current time of the
device.
clock summer-time zone-name
one-off start-time start-date
end-time end-date add-time
Set a
daylight
saving
time
scheme
Adopt daylight
saving time
repeatedly
clock summer-time zone-name
repeating start-time start-date
end-time end-date add-time
Optional
Use either command
By default, daylight saving time is
not configured on the device, and
the UTC time zone is applied.
Displaying the System Clock
The system clock is determined by the commands clock datetime, clock timezone and clock
summer-time. If these three commands are not configured, the display clock command displays
the original system clock. If you combine these three commands in different ways, the system clock is
displayed in the ways as shown in Table 1 . The meanings of the parameters in the configuration column
are as follows:
• 1 indicates date-time has been configured with the clock datetime command.
• 2 indicates time-zone has been configured with the clock timezone command and the offset time
is zone-offset.
• 3 indicates daylight saving time has been configured with the clock summer-time command
and the offset time is summer-offset.
• [1] indicates the clock datetime command is an optional configuration.
• The default system clock is 2005/1/1 1:00:00 in the example.
Table 1 System clock configuration
Configuration System clock configured Example
1 date-time
Configure: clock datetime 1:00
2007/1/1
System clock configured: 01:00:00 UTC
Mon 01/01/2007
2
The original system clock ±
zone-offset
Configure: clock timezone zone-time
add 1
System clock configured:: 02:00:00
zone-time Sat 01/01/2005
1 and 2 date-time ± zone-offset
Configure: clock datetime 2:00
2007/2/2 and clock timezone
zone-time add 1
System clock configured:: 03:00:00
zone-time Fri 02/02/2007