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 Chapter 7 Basic Setting
GS2200-48 User’s Guide
67
Use Time 
Server when 
Bootup
Type the time service protocol that your timeserver uses. Not all time 
servers support all protocols, so you may have to use trial and error to 
find a protocol that works. The main differences between them are the 
time format. 
When you select the Daytime (RFC 867) format, the Switch displays 
the day, month, year and time with no time zone adjustment. When you 
use this format, it is recommended that you use a Daytime timeserver 
within your geographical time zone. 
Time (RFC-868) format displays a 4-byte integer giving the total 
number of seconds since 1970/1/1 at 0:0:0. 
NTP (RFC-1305) is similar to Time (RFC-868). 
None is the default value. Enter the time manually. Each time you turn 
on the Switch, the time and date will be reset to 1970-1-1 0:0.
Time Server IP 
Address
Type the IP address of your timeserver. The Switch searches for the 
timeserver for up to 60 seconds. If you select a timeserver that is 
unreachable, then this screen will appear locked for 60 seconds. Please 
wait.
Current Time 
This field displays the time you open this menu (or refresh the menu).
New Time 
(hh:min:ss)
Enter the new time in hour, minute and second format. The new time 
then appears in the Current Time field after you click Apply.
Current Date
This field displays the date you open this menu.
New Date 
(yyyy-mm-dd)
Enter the new date in year, month and day format. The new date then 
appears in the Current Date field after you click Apply.
Time Zone 
Select the time difference between UTC (Universal Time Coordinated, 
formerly known as GMT, Greenwich Mean Time) and your time zone from 
the drop-down list box. 
Daylight 
Saving Time
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 Daylight Saving Time. The time is displayed in 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 2:00.
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 and the last 
field depends on your time zone. In Germany for instance, you would 
select 2:00 because Germany's time zone is one hour ahead of GMT or 
UTC (GMT+1). 
Table 11   Basic Setting > General Setup  (continued)
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