Pre-Defined Ntp Time Servers List; Time Server Synchronization - ZyXEL Communications NWA1123 Series User Manual

Table 58 Configuration > System > Date/Time (continued)
LABEL
End Date
Offset
Apply
Reset

13.3.1 Pre-defined NTP Time Servers List

When you turn on the NWA1123 for the first time, the date and time start at 2003-01-01 00:00:00. The
NWA1123 then attempts to synchronize with one of the following pre-defined list of Network Time
Protocol (NTP) time servers.
The NWA1123 continues to use the following pre-defined list of NTP time servers if you do not specify a
time server or it cannot synchronize with the time server you specified.
Table 59 Default Time Servers
0.pool.ntp.org
1.pool.ntp.org
2.pool.ntp.org
When the NWA1123 uses the pre-defined list of NTP time servers, it randomly selects one server and tries
to synchronize with it. If the synchronization fails, then the NWA1123 goes through the rest of the list in
order from the first one tried until either it is successful or all the pre-defined NTP time servers have been
tried.

13.3.2 Time Server Synchronization

Click the Sync. Now button to get the time and date from the time server you specified in the Time
Server Address field.
When the Loading message appears, you may have to wait up to one minute.
Figure 80 Loading
Chapter 13 System
DESCRIPTION
Configure the day and time when Daylight Saving Time ends if you selected Enable Daylight
Saving. The at 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 First, Sunday, November and type 2 in the at 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 Last, Sunday, October. The
time you type in the at 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).
Specify how much the clock changes when daylight saving begins and ends.
Enter a number from 1 to 5.5 (by 0.5 increments).
For example, if you set this field to 3.5, a log occurred at 6 P.M. in local official time will
appear as if it had occurred at 10:30 P.M.
Click Apply to save your changes back to the NWA1123.
Click Reset to return the screen to its last-saved settings.
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