ZyXEL Communications ADSL2+4 User Manual

Page of 272
 Chapter 17 System Settings
P-660H-T1v3s User’s Guide
175
Daylight 
Savings
Daylight saving is a period from late spring to early fall when many 
countries set their clocks ahead of normal local time by one hour to 
give more daytime light in the evening.
Select this option if you use Daylight Saving Time.
Start Date
Configure the day and time when Daylight Saving Time starts if you 
selected Enable Daylight Saving. The o'clock field uses the 24 hour 
format. Here are a couple of examples:
Daylight Saving Time starts in most parts of the United States on the 
second Sunday of March. Each time zone in the United States starts 
using Daylight Saving Time at 2 A.M. local time. So in the United States 
you would select SecondSundayMarch and type 2 in the o'clock 
field.
Daylight Saving Time starts in the European Union on the last Sunday 
of March. All of the time zones in the European Union start using 
Daylight Saving Time at the same moment (1 A.M. GMT or UTC). So in 
the European Union you would select LastSundayMarch. The time 
you type in the o'clock field depends on your time zone. In Germany 
for instance, you would type 2 because Germany's time zone is one 
hour ahead of GMT or UTC (GMT+1). 
End Date
Configure the day and time when Daylight Saving Time ends if you 
selected Enable Daylight Saving. The o'clock field uses the 24 hour 
format. Here are a couple of examples:
Daylight Saving Time ends in the United States on the first Sunday of 
November. Each time zone in the United States stops using Daylight 
Saving Time at 2 A.M. local time. So in the United States you would 
select FirstSundayNovember and type 2 in the o'clock field.
Daylight Saving Time ends in the European Union on the last Sunday of 
October. All of the time zones in the European Union stop using 
Daylight Saving Time at the same moment (1 A.M. GMT or UTC). So in 
the European Union you would select LastSundayOctober. The 
time you type in the o'clock field depends on your time zone. In 
Germany for instance, you would type 2 because Germany's time zone 
is one hour ahead of GMT or UTC (GMT+1). 
Apply
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
Table 52   Maintenance > System > Time and Date (continued)
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