How to handle time&date

can anyone tell me how to handle time&date correctly?using Calendar,GregorianCalendar,TimeZone,Locale
thank you very much

This is too large a topic to discuss in depth here. Here is a link to a tutorial on times and dates, and a search link that references many documents on the subject.
http://java.sun.com/docs/books/tutorial/i18n/format/dateintro.html
http://onesearch.sun.com/search/developers/index.jsp?and=calendar+&nh=100&phr=how+to&qt=&not=&field=&since=&col=javatecharticles&col=javatutorials&col=devall&rf=0&Search.x=20&Search.y=7
When you have specific questions, just ask.

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Hi,
I have big problem.I am working on j2ee application(using jsp & servlets).I am using Jboss App Server. The server is placed in India.
But there is two offices, one is in India ,another one is in USA.
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How to handle time&date

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