https://community.spiceworks.com/topic/563934-network-time-always-5-minutes-off

NTP.bat

@ECHO OFF
CLS
ECHO. 
ECHO. 
ECHO NOTE: This must be run with administrative privileges!
ECHO If you did not right-click on this .bat and select
ECHO "Run as administrator" then exit now and run again
ECHO. 
ECHO. 
PAUSE
ECHO. 
ECHO Setting SNTP server...
sc stop W32Time
TIMEOUT 3
W32tm /config /syncfromflags:manual /manualpeerlist:"time.windows.com"
W32tm /config /reliable:yes
TIMEOUT 2
sc start W32Time
TIMEOUT 3
W32tm /config /update
W32tm /resync
TIMEOUT 2
ECHO. 
ECHO. Done!
ECHO. 
PAUSE
EXIT


REM Set time source on Windows Server 2008 and later (OK for Domain Controller or Virtual Server)

REM For other NTP servers see: http://www.pool.ntp.org/en/use.html  or: http://tf.nist.gov/tf-cgi/servers.cgi