平成30/ 2018-10-23 22:00
日付の型。RFC3339

mysql> select timestamp('2012-05-17T15:36:49+09:00');
+----------------------------------------+
| timestamp('2012-05-17T15:36:49+09:00') |
+----------------------------------------+
| 2012-05-17 15:36:49                    |
+----------------------------------------+
1 row in set, 1 warning (0.00 sec)



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