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Calendar Object - updateTime()

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Hi Guys,

For doing Time Zone calculations, I was toying with the below code sniplet:

There is a seven hours different between Istanbul, and my developer machine, which is in America/New_York
Time Zone ID.

From the above sniplet, the results are:

Hour = 10
Minute = 16
Second = 31
DAY = 20
YEAR = 2010
BUILD SUCCESSFUL (total time: 0 seconds)

which in turn means , the time zone calculation isn't done, the values outputted belongs to local zone,so I jumped into calendar's source code and realized
that when I set day, month, etc.. the following block of code executes:

Here there is isTimeSet variable set to false, which is logical assuming that I am pushing new data to object,
changing its state. So since the state is changed, I need to force update somehow with a member function,
but I couldn't see one > again I was fooling around the source code, and I realized when I call getTimeInMillis()
function of the calendar, it forces an internal update, here is function itself:

So if I do not uncomment the part below from the code I posted in the beginning of this post, the algorithm never works correctly,
since it seems that the time information is never updated internally. After uncommenting the below section, i can get correct values
for the calculated time, date difference.

Outputs (7 hrs difference):

Hour = 17
Minute = 16
Second = 31
DAY = 20
YEAR = 2010
BUILD SUCCESSFUL (total time: 0 seconds)

So after this long, boring, maybe based on wrong assumptions? post, my question is how you guys do it?
It shouldn't be like this I hope? I should be doing smtg wrong.

Thanks all!

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