Reference Guide

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"
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.
Example of the clock summer-time recurring Command
FTOS(conf)#clock summer-time pacific recurring Mar 14 2009 00:00 Nov 7 2009
00:00 ?
816