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Date: Tue, 21 Mar 2017 16:00:44 +0000 (UTC)
From: =?utf-8?Q?Maciej_Kwidzi=C5=84ski_=28JIRA=29?= <jira@apache.org>
To: log4j-dev@logging.apache.org
Message-ID: <JIRA.12928036.1452093972000.78870.1490112044922@Atlassian.JIRA>
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Subject: [jira] [Comment Edited] (LOG4J2-1246) PatternLayout %date
 conversion pattern should render time zone designator for ISO-ISO8601
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archived-at: Tue, 21 Mar 2017 16:00:55 -0000


    [ https://issues.apache.org/jira/browse/LOG4J2-1246?page=3Dcom.atlassia=
n.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D159=
34629#comment-15934629 ]=20

Maciej Kwidzi=C5=84ski edited comment on LOG4J2-1246 at 3/21/17 4:00 PM:
--------------------------------------------------------------------

Workaround: {{%d\{ISO8601\}\{UTC\}Z}} ;)
However, I do agree that by default, the timezone should be printed explici=
tly.
The current default promotes bad engineering and is the cause of endless fr=
ustration and loss of productivity when working with numerous logs.


was (Author: dagguh):
Workaround: {{%d\{ISO8601\}\{UTC\}Z}} ;)

> PatternLayout %date conversion pattern should render time zone designator=
 for ISO-ISO8601
> -------------------------------------------------------------------------=
----------------
>
>                 Key: LOG4J2-1246
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1246
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Pattern Converters
>    Affects Versions: 2.4.1, 2.5
>            Reporter: Daniel Marcotte
>             Fix For: 2.8.2
>
>
> Hi there!
> There might be a small issue with the Pattern Converters regarding Timezo=
ne management: http://logging.apache.org/log4j/2.x/manual/layouts.html#Patt=
ernLayout
> Right now, these patterns:
> * {{"%d\{ISO8601_BASIC\}}}
> * {{%d\{ISO8601_BASIC\}\{UTC\}}}
> Give the same results:
> * {{20160104T204256,048}}
> * {{20160104T204256,048}}
> However, with a deeper look at the ISO-8601 standards, the second one wit=
h {{"\{UTC\}"}} should properly add the Timezone at the end of the timestam=
p.
> Reference: https://en.wikipedia.org/wiki/ISO_8601#Times
> {quote}
> *UTC*
> If the time is in UTC, add a Z directly after the time without a space. Z=
 is the zone designator for the zero UTC offset. "09:30 UTC" is therefore r=
epresented as "09:30Z" or "0930Z". "14:45:15 UTC" would be "14:45:15Z" or "=
144515Z".
> UTC time is also known as 'Zulu' time, since 'Zulu' is the NATO phonetic =
alphabet word for 'Z'.
> *Examples*
> <time>Z
> <time>=C2=B1hh:mm
> <time>=C2=B1hhmm
> <time>=C2=B1hh
> {quote}
> As of ISO-8601, the results should be one of the following (configurable?=
):
> * {{20160104T204256,048Z}}
> * {{20160104T204256,048+00:00}}
> * {{20160104T204256,048+0000}}
> * {{20160104T204256,048+00}}
> Another reference: http://stackoverflow.com/questions/833102/wheres-the-d=
atetime-z-format-specifier


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