NTP
The Network Time Protocol (NTP) setting allows administrators to specify precise external time servers to synchronize the device’s internal clock over a network connection.
Tap NTP to set the primary NTP server addresses and to configure the NTP timeout.

Primary NTP Server Address
The main network host responsible for broadcasting time coordinates to your mobile device
Timeout
Defines exactly how many seconds a mobile scanner will wait to establish a connection and receive a time response packet from the specified time server before dropping the attempt.