H3C Technologies H3C WX5500E Series Access Controllers - Manual (Page 43)

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Configuring system time
System time overview
You must configure a correct system time so that the device can work properly with other devices. System
time allows you to display and set the device system time, system zone, and daylight saving time on the
Web interface.
The device supports setting system time through manual configuration and automatic synchronization of
NTP server time.
Defined in RFC 1305, the NTP synchronizes timekeeping among distributed time servers and clients. NTP
can keep consistent timekeeping among all clock-dependent devices within the network, and ensure a
high clock precision so that the devices can provide diverse applications based on consistent time.
Configuration guidelines
The synchronization process takes some time. Therefore, the clock status might be unsynchronized after
your configuration. In this case, refresh the page to view the clock status and system time later on.
If the system time of the NTP server is ahead of the system time of the device, and the difference between
them exceeds the Web idle time specified on the device, all online Web users are logged out because
of timeout.
Displaying the system time
To view the current system date and time, select Device > System Time from the navigation tree to enter
the System Time tab.
Figure 29 System time configuration page
Configuring the system time
1. From the navigation tree, select Device > System Time.
The System Time tab appears.
2. Click the System Time Configuration text to open a calendar.