problems with Java daylight savings time

Question

I have a Java app that needs to be cognizant of the time zone. When I take a Unix epoch time and try to convert it into a timestamp to use for an Oracle SQL call, it is get

Answer 1

If you want to disable daylight saving calculation, then you must set your timezone to EST. Else otherwise time will be calculated based on default time zone set for AMERICA/NEW_YORK

       TimeZone zoneEST = TimeZone.getTimeZone("EST"); 
       System.out.println(zoneEST.getDSTSavings());  //0 hour
       System.out.println(zoneEST.getRawOffset());  //5 hour
       TimeZone.setDefault(zoneEST);
       System.out.println("");

       TimeZone zoneNY = TimeZone.getTimeZone("America/New_York");
       System.out.println(zoneNY.getDSTSavings()); // 1 hour
       System.out.println(zoneNY.getRawOffset()); // 5 hour