ZyXEL Communications ZyXEL ZyWALL 5 - Manual (Page 378)

ZyWALL 5 User’s Guide
Chapter 24 Maintenance 377
The following table describes the labels in this screen.
Table 138 Time and Date
LABEL DESCRIPTION
Current Time and
Date
Current Time This field displays the time of your ZyWALL.
Each time you reload this page, the ZyWALL synchronizes the time with the time
server.
Current Date This field displays the date of your ZyWALL.
Each time you reload this page, the ZyWALL synchronizes the date with the time
server.
Time and Date
Setup
Manual 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 new
time and date you entered has priority and the Time Zone and Daylight Saving
settings do not affect it.
New Time
(hh:mm:ss)
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.
New Date
(yyyy-mm-dd)
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.
Get from Time
Server
Select this radio button to have the ZyWALL get the time and date from the time
server you specified below.
Time Protocol Select the time service protocol that your time server uses. Not all time servers
support all protocols, so you may have to check with your ISP/network
administrator or use trial and error to find a protocol that works.
The main difference between them is the format.
Daytime (RFC 867) format is day/month/year/time zone of the server.
Time (RFC 868) format displays a 4-byte integer giving the total number of
seconds since 1970/1/1 at 0:0:0.
The default, NTP (RFC 1305), is similar to Time (RFC 868).
Time Server
Address
Enter the IP address or URL of your time server. Check with your ISP/network
administrator if you are unsure of this information.
Synchronize Now 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 (including
the time server address).
Time Zone Setup
Time Zone Choose the time zone of your location. This will set the time difference between
your time zone and Greenwich Mean Time (GMT).
Enable Daylight
Saving
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 savings time.