Cisco Cisco Web Security Appliance S170 사용자 가이드

Select a time zone in the Time Zone area. You can configure the time zone by specifying the region and 
country, or by using a GMT offset.

The web interface uses the POSIX-style method of indicating the time zone using a GMT offset. This 
may be different than the offset convention used elsewhere.

The offset refers to the amount of hours that must be added or subtracted to the local time zone in order 
to reach GMT (Greenwich Mean Time or the Prime Meridian). Hours preceded by a minus sign (“-”) are 
east of the Prime Meridian. A plus sign (“+”) indicates west of the Prime Meridian.

For example, if the current time in New York is 08:00, then you must add five hours to get the current 
time in Greenwich, England, which is 13:00. In this case, to indicate the time in New York, the GMT 
offset is GMT+5. The “+5” in the offset indicates that you must add five hours to the time in New York 
to reach Greenwich Mean Time.

To edit system time, use the System Administration > Time Settings page.

To edit NTP server settings and use an NTP server to synchronize the system clock with other computers:

Enter an NTP server IP address and use the Add Row key to repeat as necessary for each NTP server.

Choose the routing table associated with an appliance network interface type, either Management or 
Data, to use for NTP queries. This is the IP address from which NTP queries should originate.

Submit and commit the changes.

To set the system time manually: