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[Bug 1334] no implicit conversion between time zones

From: <bugzilla@wiggum.w3.org>
Date: Tue, 12 Jul 2005 04:29:19 +0000
To: public-qt-comments@w3.org
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Message-Id: <E1DsCOV-0005Xc-Ar@wiggum.w3.org>

http://www.w3.org/Bugs/Public/show_bug.cgi?id=1334





------- Additional Comments From mrys@microsoft.com  2005-07-12 04:29 -------
The reason why it is as it is has to do with the following:

In order to be able to order or optimize filters that include comparisons on 
date/time values wit the help of indices you need to be able to have the 
values in a complete order (as Andrew explains).

If you have several documents that contain values that have differently 
implied timezones, you should do one of two things:

1. Use the adjust-timezone functions for each document value based on the 
local timezone.

2. Lobby your implementation to provide a mapping to a timezone when storing 
the document (thus loosing the "absence" of the timezone).

The reason that we imply exactly one timezone is that we need something that 
can be implemented without having too much implementation complexity. 

Note that implementations can and some will default to Z...
Received on Tuesday, 12 July 2005 04:29:24 UTC

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