Difference Time b/w Current TimeZone to GMT

Hi
I need to get the Difference time(Millisec), between current TimeZone to GMT
Can anyone help me to get this.
Thanks

Look at TimeZone's getRawOffset() and getOffset(long) methods.

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    but the correct time should be: 2001-8-16 7:17:48
    the correct time should be 2001-8-16

    Certain indexes in the Calendar API start at 0 rather then 1, so, when you get the value, you may want to increment.
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    How to convert local time to GMT ?
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