LevelOne GTL-2690 - Manual (Page 115)

Setting the System Clock
4-39
4
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.
Command Attributes
General Configuration
• Summer Time in Effect – Shows if the system time has been adjusted.
• Status – Shows if summer time is set to take effect during the specified period.
• Name – Name of the time zone while summer time is in effect, usually an acronym.
(Range: 1-30 characters)
• Mode – Selects one of the following configuration modes.
Predefined Mode – Configures the summer time status and settings for the switch
using predefined configurations for several major regions of the world. To specify
the time corresponding to your local time when summer-time is in effect, select the
predefined summer-time time zone appropriate for your location.
Date Mode – Sets the start, end, and offset times of summer-time for the switch on a
one-time basis. This mode sets the summer-time time zone relative to the currently
configured time zone. To specify a time corresponding to your local time when
summer-time is in effect, you must indicate the number of minutes your
summer-time time zone deviates from your regular time zone.
• Offset – Summer-time offset from the regular time zone, in minutes.
(Range: 0-99 minutes)
• From – Start time for summer-time offset.
• To – End time for summer-time offset.
Table 4-2 Predefined Summer-Time Parameters
Region Start Time, Day, Week, & Month End Time, Day, Week, & Month Rel. Offset
Australia 00:00:00, Sunday, Week 5 of October 23:59:59, Sunday, Week 5 of March 60 min
Europe 00:00:00, Sunday, Week 5 of March 23:59:59, Sunday, Week 5 of October 60 min
New Zealand 00:00:00, Sunday, Week 1 of October 23:59:59, Sunday, Week 3 of March 60 min
USA 02:00:00, Sunday, Week 2 of March 02:00:00, Sunday, Week 1 of November 60 min