Chapter 4
| System Management Commands
Time
– 124 –
Manual Configuration Commands
clock summer-time This command sets the start, end, and offset times of summer time (daylight
savings time) for the switch on a one-time basis. Use the no form to disable
summer time.
Syntax
clock summer-time name date b-date b-month b-year b-hour b-minute e-date
e-month e-year e-hour e-minute [offset]
no clock summer-time
name - Name of the time zone while summer time is in effect, usually an
acronym. (Range: 1-30 characters)
b-date - Day of the month when summer time will begin. (Range: 1-31)
b-month - The month when summer time will begin. (Options: january |
february | march | april | may | june | july | august | september | october
| november | december)
b-year- The year summer time will begin.
b-hour - The hour summer time will begin. (Range: 0-23 hours)
b-minute - The minute summer time will begin. (Range: 0-59 minutes)
e-date - Day of the month when summer time will end. (Range: 1-31)
e-month - The month when summer time will end. (Options: january |
february | march | april | may | june | july | august | september | october
| november | december)
e-year - The year summer time will end.
e-hour - The hour summer time will end. (Range: 0-23 hours)
e-minute - The minute summer time will end. (Range: 0-59 minutes)
offset - Summer time offset from the regular time zone, in minutes.
(Range: 0-99 minutes)
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
◆ In some countries or regions, clocks are adjusted through the summer months
so that afternoons have more daylight and mornings have less. This is known as
Summer Time, or Daylight Savings Time (DST). Typically, clocks are adjusted
forward one hour at the start of spring and then adjusted backward in autumn.
◆ This command sets the summer-time zone relative to the currently configured
time zone. To specify a time corresponding to your local time when summer
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