H3C S6812 Series Command Reference Manual page 231

Predefined user roles
network-admin
Parameters
name: Specifies a name for the daylight saving time schedule, a case-sensitive string of 1 to 32
characters.
start-time: Specifies the start 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.
start-date: Specifies the start date in one of the following formats:
MM/DD. The value range for MM is 1 to 12. The value range for DD varies by month.
month week day, where:
month—Takes January, February, March, April, May, June, July, August, September, October,
November or December.
week—Represents week of the month. It takes first, second, third, fourth, fifth, or last.
day—Takes Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, or Saturday.
end-time: Specifies the end 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.
end-date: Specifies the end date in one of the following formats:
MM/DD. The value range for MM is 1 to 12. The value range for DD varies by month.
month week day, where:
month—Takes January, February, March, April, May, June, July, August, September, October,
November or December.
week—Represents week of the month. It takes first, second, third, fourth, fifth, or last.
day—Takes Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, or Saturday.
add-time: Specifies the time to be added to the standard 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.
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.
After you set the daylight saving time, the device recalculates the system time. To view the system
time, use the display clock command.
Make sure all devices on the network are using the same daylight saving time as the local time.
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
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