Re: different timezones causing chaos with rmi

From:
"Karl Uppiano" <karl.uppiano@verizon.net>
Newsgroups:
comp.lang.java.programmer
Date:
Thu, 26 Apr 2007 05:29:17 GMT
Message-ID:
<NMWXh.4047$nR1.636@trnddc06>
"epicwinter" <epicwinter@hotmail.com> wrote in message
news:1177557466.057115.193670@u32g2000prd.googlegroups.com...

On Apr 24, 3:40 pm, kevin cline <kevin.cl...@gmail.com> wrote:

On Apr 23, 7:48 pm, epicwinter <epicwin...@hotmail.com> wrote:

I am working on an application deployed in an ASP model using rmi with
a swing client. I have been running into some problems with dates
when the client is on a different timezone than the server. If the
client is on est and the server runs on pct then when the client
submits a date time it translates itself and so i could either gain 3
hours or lose 3 hours depending on the direction of the
translation.


What do you mean "translates itself?" How are you passing times from
the client to the server? If you serialize and then deserialize
either a Date or a Calendar you should have no problem. If you are
converting to and from some human-readable string format, then you
need to be careful.


I am serializing a java.util.Date.


You should not do that. java.util.Date is initialized with the local time
zone. Send the UTC time in milliseconds as a long instead. Use that to
reconstitute a new date at the other end. The timezone conversion will be
done automatically for you, including daylight saving time, leap years, etc.

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