clock summer-time date
Set a date (and time zone) on which to convert the switch to daylight saving time on a one-time basis.
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax
clock summer-time time-zone date start-month start-day start-
year start-time end-month end-day end-year end-time [offset]
To delete a daylight saving time zone configuration, use the no clock summer-time 
command.
Parameters
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. The range is 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 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-day
Enter the number of the day. The range is 1 to 31. You can enter the 
name of a month to change the order of the display to time day month 
year.
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-time
Enter the time in hours:minutes. For the hour variable, use the 24-hour 
format; example, 17:15 is 5:15 pm.
end-year
Enter a four-digit number as the year. The range is 1993 to 2035.
offset
(OPTIONAL) Enter the number of minutes to add during the summer-
time period. The range is 1 to1440. The default is 60 minutes.
Defaults Not configured.
Command Modes CONFIGURATION
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version 
6.1.1.0
Introduced on the E-Series.
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