H3C Technologies H3C SecBlade LB Cards - Manual (Page 71)

61
Item Description
Adjust clock for
daylight saving time
changes
Adjust the system clock for daylight saving time changes, which means adding one
hour to the current system time.
Click Adjust clock for daylight saving time changes to expand the option, as shown
in
Figure 44 . You can configure the daylight saving time changes in the following
ways:
• Specify that the daylight saving time starts on a specific date and ends on a specific
date. The time range must be greater than one day and smaller than one year. For
example, configure the daylight saving time to start on August 1st, 2006 at
06:00:00 a.m., and end on September 1st, 2006 at 06:00:00 a.m.
• Specify that the daylight saving time starts and ends on the corresponding specified
days every year. The time range must be greater than one day and smaller than one
year. For example, configure the daylight saving time to start on the first Monday in
August at 06:00:00 a.m., and end on the last Sunday in September at 06:00:00
a.m.
Figure 44 Setting the daylight saving time
Configuring the system time at the CLI
Configuration guidelines
You can change the system time by configuring the relative time, time zone, and daylight saving time. The
configuration result depends on their configuration order (see Table 14 ). In the first column of this table,
1 represents the clock datetime command, 2 represents the clock timezone command, and 3 represents
the clock summer-time command. To verify the system time setting, use the display clock command. This
table assumes that the original system time is 2005/1/1 1:00:00.
Table 14 System time configuration results
Command Effective system time Configuration example System time
1 date-time clock datetime 1:00
2007/1/1
01:00:00 UTC Mon
01/01/2007.
2
Original system time ±
zone-offset
clock timezone
zone-time add 1
02:00:00 zone-time Sat
01/01/2005.
1, 2 date-time ± zone-offset
clock datetime 2:00
2007/2/2
clock timezone
zone-time add 1
03:00:00 zone-time Fri
02/02/2007.
2, 1 date-time
clock timezone
zone-time add 1
clock datetime 3:00
2007/3/3
03:00:00 zone-time Sat
03/03/2007.