ZyXEL Communications Unified Security Gateway ZyWALL 300 User Manual page 577

Table 197 System > Date and Time (continued)
LABEL
Manual
New Time (hh-mm-
ss)
New Date
(yyyy-mm-dd)
Get from Time
Server
Time Server
Address
Synchronize Now
Time Zone Setup
Time Zone
Enable Daylight
Saving
Start Date
ZyWALL USG 300 User's Guide
DESCRIPTION
Select this radio button to enter the time and date manually. If you configure a
new time and date, time zone and daylight saving at the same time, the time
zone and daylight saving will affect the new time and date you entered. When
you enter the time settings manually, the ZyWALL uses the new setting once you
click Apply.
This field displays the last updated time from the time server or the last time
configured manually.
When you set Time and Date Setup to Manual, enter the new time in this field
and then click Apply.
This field displays the last updated date from the time server or the last date
configured manually.
When you set Time and Date Setup to Manual, enter the new date in this field
and then click Apply.
Select this radio button to have the ZyWALL get the time and date from the time
server you specify below. The ZyWALL requests time and date settings from the
time server under the following circumstances.
• When the ZyWALL starts up.
• When you click Apply or Synchronize Now in this screen.
• 24-hour intervals after starting up.
Enter the IP address or URL of your time server. Check with your ISP/network
administrator if you are unsure of this information.
Click this button to have the ZyWALL get the time and date from a time server
(see the Time Server Address field). This also saves your changes (except the
daylight saving settings).
Choose the time zone of your location. This will set the time difference between
your time zone and Greenwich Mean Time (GMT).
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.
Configure the day and time when Daylight Saving Time starts if you selected
Enable Daylight Saving. The at 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
Second, Sunday, March and type 2 in the at 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 Last, Sunday, March. 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).
Chapter 43 System
577