Dahua PFS4218-16GT-190 Web Config Manual page 18

Step 2 Select the mode as Enabled to enable the NTP service. By default, the mode is
Disabled.
Step 3 Set the IP address of the NTP server. See Figure 4-6.
Step 4 Click Save.
The switch can synchronize with the time of server 1.
4.1.1.4 Time
You can set the time zone and daylight saving time.
Select Advanced > Configuration > System > Time. The Time settings interface is displayed.
See Figure 4-7.
Figure 4-5 NTP configuration (1)
Figure 4-6 NTP configuration (2)
Advanced Settings 11