White Papers

￭ week-number: Enter a number from 1 to 4 as the number of the week in the month to start daylight saving time.
￭ first: Enter the keyword first to start daylight saving time in the first week of the month.
￭ last: Enter the keyword last to start daylight saving time in the last week of the month.
○ start-month: Enter the name of one of the 12 months in English. You can enter the name of a day to change the order
of the display to time day month year.
○ start-day: Enter the number of the day. The range is from 1 to 31. You can enter the name of a month to change the
order of the display to time day month year.
○ start-year: Enter a four-digit number as the year. The range is from 1993 to 2035.
○ start-time: Enter the time in hours:minutes. For the hour variable, use the 24-hour format; example, 17:15 is 5:15 pm.
○ end-week: If you entered a start-week, enter the one of the following as the week that daylight saving ends:
￭ week-number: Enter a number from 1 to 4 as the number of the week in the month to start daylight saving time.
￭ first: Enter the keyword first to start daylight saving time in the first week of the month.
￭ last: Enter the keyword last to start daylight saving time in the last week of the month.
○ end-month: Enter the name of one of the 12 months in English. You can enter the name of a day to change the order of
the display to time day month year.
○ end-day: Enter the number of the day. The range is from 1 to 31. You can enter the name of a month to change the
order of the display to time day month year.
○ end-year: Enter a four-digit number as the year. The range is from 1993 to 2035.
○ end-time: Enter the time in hours:minutes. For the hour variable, use the 24-hour format; example, 17:15 is 5:15 pm.
○ offset: (OPTIONAL) Enter the number of minutes to add during the summer-time period. The range is from 1 to1440.
The default is 60 minutes.
Dell(conf)#clock summer-time pacific recurring Mar 14 2012 00:00 Nov 7 2012 00:00
Dell(conf)#
NOTE:
If you enter <CR> after entering the recurring command parameter, and you have already set a one-time
daylight saving time/date, the system uses that time and date as the recurring setting.
Dell(conf)#clock summer-time pacific recurring ?
<1-4> Week number to start
first Week number to start
last Week number to start
<cr>
Dell(conf)#clock summer-time pacific recurring
Dell(conf)#
Configuring the Offset-Threshold for NTP Audit Log
You can configure the system to send an audit log message to a syslog server if the time difference from the NTP server is
greater than a threshold value (offset-threshold). However, time synchronization still occurs. To configure the offset-threshold,
follow this procedure.
● Specify the threshold time interval before which the system generates an NTP audit log message if the system time deviates
from the NTP server.
CONFIGURATION mode
ntp offset-threshold threshold-value
The range for threshold-value is from 0 to 999.
Dell(conf)#ntp offset-threshold 9
System Time and Date
795