Concept Guide

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 from 1993 to 2035.
oset (OPTIONAL) Enter the number of minutes to add during the summer-time period. The
range is from 1 to1440. The default is 60 minutes.
Defaults Not congured.
Command Modes CONFIGURATION
Supported Modes All Modes
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.17.0 Supported on the M I/O Aggregator.
Related Commands
clock summer-time recurring — sets a date (and time zone) on which to convert the switch to daylight saving time
each year.
show clock — displays the current clock settings.
clock summer-time recurring
Set the software clock to convert to daylight saving time on a specic day each year.
Syntax
clock summer-time time-zone recurring [start-week start-day start-month start-
time end-week end-day end-month end-time [offset]]
To delete a daylight saving time zone conguration, 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. You can enter up to eight characters.
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 this keyword to start daylight saving time in the rst week of the
month.
•
last: Enter this keyword to start daylight saving time in the last week of the month.
start-day Enter the name of the day that you want daylight saving time to begin. Use English three
letter abbreviations; for example, Sun, Sat, Mon, and so on. The range is from Sun to Sat.
start-month Enter the name of one of the 12 months in English.
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 Enter the one of the following as the week that daylight saving ends:
1318 System Time