Configuring The System Time; Configuration Guidelines; Displaying The System Time - HP 830 Series Configuration Manual

Poe+ unified wired-wlan switch switching engine web-based
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Configuring the system time

Configure a correct system time so that the device can work with other devices correctly. System time
allows you to display and set the device system time on the Web interface.
You can set the system time using manual configuration or automatic synchronization of NTP server time.
Changing the system clock on each device within a network is time-consuming and does not guarantee
clock precision.
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

A device can act as a server to synchronize the clock of other devices only after its clock has been
synchronized. If the clock of a server has a stratum level higher than or equal to that of a client's clock,
the client will not synchronize its clock to the server's.
The synchronization process takes some time. Therefore, the clock status may 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 page.
Figure 29 System time page
Configuring the system time
1.
Select Device > System Time from the navigation tree.
The System Time page appears.
2.
Click the System Time Configuration calendar button.
The calendar page appears.
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