ZyXEL Communications P-660R-Tx v2 Series ユーザーズマニュアル

P-660R-Tx v2 Series User’s Guide

86

Chapter 9 Time and Date

The following table describes the labels in this screen.

Table 22   Time and Date

Time Server

Use Protocol when 

Bootup

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. 
NTP (RFC 1305) is similar to Time (RFC 868). 
Select None to enter the time and date manually. 

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

administrator if you are unsure of this information.

Time and Date

Choose the time zone of your location. This will set the time difference between 

your time zone and Greenwich Mean Time (GMT). 

Daylight Savings

Select this option if you use daylight savings 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.

Start Date

Enter the month and day that your daylight-savings time starts on if you selected 

Daylight Savings.

End Date

Enter the month and day that your daylight-savings time ends on if you selected 

Daylight Savings.

Synchronize 

system clock with 

Time Server now.

Select this option to have your ZyXEL Device use the time server (that you 

configured above) to set its internal system clock.
Please wait for up to 60 seconds while the ZyXEL Device locates the time server. 

If the ZyXEL Device cannot find the time server, please check the time server 

protocol and its IP address. If the IP address was entered correctly, try pinging it 

for example to test the connection.

Date

Current Date

This field displays the date of your ZyXEL Device. 
Each time you reload this page, the ZyXEL Device synchronizes the time with the 

time server.

New Date (yyyy-

mm-dd)

This field displays the last updated date from the time server.
When you select None in the Use Protocol when Bootup field, enter the new 

date in this field and then click Apply.

Time

Current Time

This field displays the time of your ZyXEL Device.
Each time you reload this page, the ZyXEL Device synchronizes the time with the 

time server.

New Time

This field displays the last updated time from the time server.
When you select None in the Use Protocol when Bootup field, enter the new 

time in this field and then click Apply. 

Apply

Click Apply to save your changes back to the ZyXEL Device.

Cancel

Click Cancel to begin configuring this screen afresh.