It's a VB problem you can either try tk's advice in another thread about this;
Originally Posted by tk102
The settings for DST are "automatically detected" only at the time that you choose that option it seems. From there on out, it keeps the setting that was detected. To fix this, set DST to always off or always on and click save, then go back and set DST to automatic detection. That should fix it.
Or just change it manually which is what I done.