The proper way too ensure the correct time is by using the TimeServer= parameter and other time parameters in the WNOS.INI file. See example below.
TimeServer=NTPserver.whatever.com \
TimeFormat="12-hour format" \
DateFormat=mm/dd/yyyy
TimeZone='GMT - 05:00' \
ManualOverride=no \
Daylight=Yes
Start=030207 \
End=110107 \
TimeZoneName=Eastern \
DayLightName="Eastern Daylight"
For more details, please review the INI Reference Guide.