Dahua DH-PFS4212-8GT-96 Web Operation Manual page 19

You can set the system time through the following three methods:
Set the time manually

Set the date and time on Current Time interface, and then click Save.
Sync time

Click Sync PC, and the switch time synchronizes with the local PC time automatically.
Sync NTP server time

Only with NTP server configured in the network can you enable this function in the following
steps:
Step 1 Select the NTP Enable box to enable the NTP service.
Step 2 Set the IP address of the NTP server.
Click Save.
Step 3
Figure 3-5 Current time (1)
Figure 3-6 Current time (2)
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