This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
You can declaratively tune up the time zone by changing the milliseconds of a date/time. On the other hand, you may create a TimeZone object with the Zone ID, and use it with Calendar - that will include the daylight saving as well.