ZyWALL 5/35/70 Series User’s Guide

 

Table 174 Time and Date (continued)

 

 

 

 

LABEL

DESCRIPTION

 

 

 

 

Get from Time

Select this radio button to have the ZyWALL get the time and date from the time

 

Server

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

Enter the IP address or URL of your time server. Check with your ISP/network

 

Address

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

Daylight saving is a period from late spring to early fall when many countries set

 

Saving

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 first Sunday

 

 

of April. 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 First, Sunday, April

 

 

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 Last, Sunday, March. 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 last Sunday of October.

 

 

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 Last, Sunday, October 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 Last, Sunday, October. 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 Apply to save your changes back to the ZyWALL.

 

 

 

 

Reset

Click Reset to begin configuring this screen afresh.

 

 

 

Chapter 31 Maintenance

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