Date Time Functions MySQL Tutorial

mysql>
mysql> select DATE_SUB(curdate(), INTERVAL 1.1 MINUTE_MICROSECOND);
+------------------------------------------------------+
| DATE_SUB(curdate(), INTERVAL 1.1 MINUTE_MICROSECOND) |
+------------------------------------------------------+
| 2007-07-21 23:59:58.999999                           |
+------------------------------------------------------+
1 row in set (0.00 sec)
mysql>