You are only required to set the time zone or date and time on the ET40/ET45 if the wireless LAN does not support Network Time Protocol (NTP) or when not connected to a cellular/wireless network.
Go to
Settings
.
Touch
System
Date & time
.
On Android 11, touch
Use network-provided time
to disable automatic date and time synchronization.
On Android 13, touch
Set time automatically
to disable automatic date and time synchronization.
On Android 11, touch
Use network-provided time zone
to disable automatic time-zone synchronization.
On Android 13, touch
Set time zone automatically
to disable automatic time-zone synchronization.
Touch
OK
.
Touch
Time
.
Touch the circle, drag to the current hour, and then release.
Touch the circle, drag to the current minute, and then release.
Touch
AM
or
PM
.
Touch
OK
.
Touch
Time zone
to select the current time zone from the list.
Touch
Update Interval
to select an interval to synchronize the system time from the network.
