Transaction log autogrowth duration
You're looking at SQL Trace. Extended Events records duration in microseconds (though some data is reported in milliseconds, duration isn't affected). You can see that the event took less than 5 seconds:

&lt;StartTime&gt;2013-08-29T11:14:22.263&lt;/StartTime&gt;
&lt;EndTime&gt;2013-08-29T11:14:26.437&lt;/EndTime&gt;


And also just to confirm (though it's off a bit due to millisecond rounding in the datetime data type):

SELECT DATEDIFF(MICROSECOND,'2013-08-29T11:14:22.263','2013-08-29T11:14:26.437');

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