Cisco WS-C2980G-A Software Guide - Page 580
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Configuring NTP on the Switch Chapter 39 Configuring NTP To enable the daylight saving time clock adjustment following the U.S. standards, perform this task in privileged mode: Step 1 Step 2 Task Command Enable the daylight saving time clock adjustment. set summertime enable [zone_name] set summertime recurring Verify the configuration. show summertime This example shows how to set the clock adjusted for Pacific Daylight Time following the U.S. standards: Console> (enable) set summertime enable PDT Console> (enable) set summertime recurring Summertime is enabled and set to 'PDT' Console> (enable) To enable the daylight saving time clock adjustment that recurs every year on different days or with a different offset than the U.S. standards, perform this task in privileged mode: Step 1 Step 2 Task Command Enable the daylight saving time clock adjustment. set summertime recurring week day month hh:mm week day month hh:mm offset Verify the configuration. show summertime This example shows how to set the daylight saving time clock adjustment, repeating every year, starting on the third Monday of February at noon and ending on the second Saturday of August at 3:00 p.m. with a 30-minute offset forward in February and back in August. Console> (enable) set summertime recurring 3 mon feb 3:00 2 saturday aug 15:00 30 Summer time is disabled and set to '' start: Sun Feb 13 2000, 03:00:00 end: Sat Aug 26 2000, 14:00:00 Offset: 30 minutes Recurring: yes, starting at 3:00am Sunday of the third week of February and ending 14:00pm Saturday of the fourth week of August. Console> (enable) To enable the daylight saving time clock adjustment to a nonrecurring specific date, perform this task in privileged mode: Step 1 Step 2 Task Command Enable the daylight saving time clock adjustment. set summertime date month date year hh:mm month date year hh:mm offset Verify the configuration. show summertime This example shows how to set the nonrecurring daylight saving time clock adjustment on April 30, 2003, at 4.30 a.m., ending on February 1, 2004 at 5:30 a.m., with an offset of 1 day (1440 min): Console> (enable) set summertime date apr 13 2003 4:30 jan 21 2004 5:30 50 Summertime is disabled and set to '' Start : Thu Apr 13 2000, 04:30:00 End : Mon Jan 21 2002, 05:30:00 39-6 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01
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