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From "Remko Popma (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LOG4J2-1246) PatternLayout %date conversion pattern should render time zone designator for ISO-ISO8601
Date Mon, 11 Jul 2016 05:53:11 GMT

     [ https://issues.apache.org/jira/browse/LOG4J2-1246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Remko Popma updated LOG4J2-1246:
--------------------------------
    Fix Version/s: 2.7

> 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: 2.7
>
>
> Hi there!
> There might be a small issue with the Pattern Converters regarding Timezone management:
http://logging.apache.org/log4j/2.x/manual/layouts.html#PatternLayout
> 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 with {{"\{UTC\}"}}
should properly add the Timezone at the end of the timestamp.
> 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 represented 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>±hh:mm
> <time>±hhmm
> <time>±hh
> {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-datetime-z-format-specifier



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