2012-07-22 16:44:23 +10:00
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<h3>hour() function</h3>
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Extract the hour from a datetime or time, or the number of hours
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from a <code>Interval</code>
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<h4>Syntax</h4>
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<code>hour(datetime)</code><br>
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<code>hour(Interval)</code><br>
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<h4>Arguments</h4>
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<code>date</code> - is datetime or time. The date to extract the hour from.
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<br>
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<code>Interval</code> - is Interval. The Interval to return the number of hours from.
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<h4>Example</h4>
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<!-- Show example of function.-->
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2012-07-22 15:59:26 +02:00
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<code>hour('2012-07-22T13:24:57') → 13</code><br>
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<code>hour(tointerval('3 hours')) → 3</code><br>
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<code>hour(age('2012-07-22T13:00:00','2012-07-22T10:00:00')) → 3</code><br>
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<code>hour(age('2012-01-01','2010-01-01')) → 17520</code><br>
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2012-07-22 16:44:23 +10:00
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