I am a newbie on Liferay and furthermore 100% Windows infrastructure knowledge based. I installed Liferay 6.2 on my Windows 2012R2 server together with Java jdk-8u5 version
I had to delete what was in Java Options completely or it wouldn't start: and then I entered:
-XX:MaxPermSize=512m
-Dfile.encoding=UTF8
-Duser.timezone=America/New_York
-Dorg.apache.catalina.loader.WebappClassLoader.ENABLE_CLEAR_REFERENCES=false
-Djava.net.preferIPv4Stack=true
note that where I am: America/New_York allows for both EST and EDT