QTECH QSW-3400 Инструкция по настройке - Manual (Page 443)

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442
Chapter 62 Summer Time Configuration
62.1 Introduction to Summer Time
Summer time is also called daylight saving time, it is a time system for saving energy sources.
In summer the time is advanced 1 hour to keep early hours, reduce the lighting, so as to save
electrolighting. The rule that adopt summer time is different in each country. At present, almost
110 countries implement summer time.
Compare with the standard time, usually set summer time 1 hour late, for example, when
summer time is implementing, 10:00 am of the standard time is considered 11:00 am of
summer time.
62.2 Summer Time Configuration Task Sequence
Configure absolute or recurrent time range of summer time
Command Explanation
Global Mode
clock summer-time absolute
[]
no clock summer-time
Set absolute time range of summer time, start
and end summer time is configured with
specified year.
clock summer-time recurring
[]
no clock summer-time
Set recurrent time range of summer time,
every year the summer time begins from the
start time and end at the end time.
clock summer-time recurring
[]
no clock summer-time
Set recurrent time range of summer time,
every year the summer time begins from the
start time and end at the end time.
62.3 Examples of Summer Time
Example1:
The configuration requirement in the following: The summer time from 23:00 on April 1th, 2012