HOUR
Extracts the hour of the day from the given datetime, zero-indexed. Midnight is 0, 11PM is 23.
Syntax
HOUR ( dateobj )
Arguments
dateobj: a valid date, datetime, time, or parsable datetime string.
Return Type
Integer
Examples
select hour('2009-02-13 23:31:30');
+-----------------------------+
| hour('2009-02-13 23:31:30') |
+-----------------------------+
| 23 |
+-----------------------------+
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