Java is not showing proper Timezone conversion for CDT
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  I  tried to get time difference in java but for CDT as TimeZone in java it's not calculating  daylight saving. if i am using CST as TimeZone in java then it's calculating daylight saving.can any one tell me what to do? I am getting this CST / CDT from System and can't use any other thing other than this. is there any way with CST/CDT  i can get the full name of TimeZone?