152DefaultDaylight saving time is disabled and the UTC time zone applies.ViewsSystem viewDefault command level3: Manage levelParameterszone-name: Specifies a daylight saving time schedule by a zone name, a case-sensitive string of 1 to 32characters.start-time: Specifies a start time, in the hh:mm:ss format. Zeros can be omitted, unless you specify00:00:00.start-date: Specifies a start date, in the MM/DD/YYYY or YYYY/MM/DD format.end-time: Specifies an end time, in the hh:mm:ss format. Zeros can be omitted, unless you specify00:00:00.end-date: Specifies an end date, in the MM/DD/YYYY or YYYY/MM/DD format.add-time: Specifies a time to be added to the standard time of the device, in the hh:mm:ss format. Zeroscan be omitted, unless you specify 00:00:00.Usage guidelinesThe interval between start-time start-date and end-time end-date must be longer than one day and shorterthan one year. If the current system time is in the specified daylight saving days, the add-time valueautomatically adds to the system time.To verify the setting, use the display clock command.The timestamps in system messages are adjusted in reference to the time zone and daylight savingschedule.Examples# Set the system time ahead one hour for the period between 06:00:00 on 08/01/2011 and 06:00:00on 09/01/2011. system-view[Sysname] clock summer-time abc1 one-off 6 08/01/2011 6 09/01/2011 1Related commands• clock datetime• clock summer-time repeating• clock timezone• display clockclock summer-time repeatingUse clock summer-time repeating to set a recurring daylight saving schedule.Use undo clock summer-time to cancel the configuration of the daylight saving time.
