Reference Guide

from
"none" to "Summer time starts 00:00:00 Pacific Sat Mar 14 2009;Summer time ends 00:00:00
pacific
Sat Nov 7 2009"
Setting Recurring Daylight Saving Time
Set a date (and time zone) on which to convert the switch to daylight saving time on a specific day every year.
If you have already set daylight saving for a one-time setting, you can set that date and time as the recurring setting with the
clock summer-time time-zone recurring command.
To set a recurring daylight saving time, use the following command.
● Set the clock to the appropriate timezone and adjust to daylight saving time every year.
CONFIGURATION mode
clock summer-time time-zone recurring start-week start-day start-month start-time end-
week end-day end-month end-time [offset]
○ time-zone: Enter the three-letter name for the time zone. This name displays in the show clock output.
○ start-week: (OPTIONAL) Enter one of the following as the week that daylight saving begins and then enter values for
start-day through end-time:
￭ 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.
The following example shows using the clock summer-time recurring command.
Dell(conf)#clock summer-time pacific recurring Mar 14 2009 00:00 Nov 7 2009 00:00 ?
Dell(conf)#02:02:13: %SYSTEM-P:CP %CLOCK-6-TIME CHANGE: Summertime configuration changed
from
"none" to "Summer time starts 00:00:00 Pacific Sat Mar 14 2009;Summer time ends 00:00:00
pacific
Sat Nov 7 2009"
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.
To view the clock summer-time recurring parameters, use the clock summer-time <time> recurring ? command.
Dell(conf)#clock summer-time pacific recurring ?
<1-4> Week number to start
first Week number to start
750
System Time and Date