Reference Guide

228 | System Time and Date
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Setting Daylight Savings Time
FTOS supports setting the system to daylight savings time once or on a recurring basis every year.
Setting Daylight Saving Time Once
Set a date (and time zone) on which to convert the switch to daylight savings time on a one-time basis.
To set daylight saving time once, use the following command:
Command Syntax Command Mode Purpose
clock summer-time time-zone date
start-month start-day start-year
start-time end-month end-day
end-year end-time [offset]
CONFIGURATION Set the clock to the appropriate timezone and daylight
savings time.
•
time-zone: Enter the three-letter name for the time
zone. This name is displayed in the show clock
output.
• 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. Range: 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.
Range: 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-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. Range: 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.
Range: 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. Range: 1 to1440.
Default: 60 minutes
FTOS(conf)#clock summer-time pacific date Mar 14 2012 00:00 Nov 7 2012 00:00
FTOS(conf)#