Title: The single character G instead of Y took down Twitter&#x27;s API today.<p>If you&#x27;re using YYYY in your JVM service or %G in anything, fix it now. You&#x27;re very likely using the wrong year format.<p>date
Mon Dec 29 00:44:45 EST 2014
date -u &quot;+%G&quot;
2015<p>ISO 8601 week numbering has 2015 start this week.
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