Description:
------------
Get wrong time values into database when missing %S in ibase.timeformat, like: ini_set('ibase.timeformat', "%H:%M");

Firebird 2.1.1.17910
EXECUTION_DATE = Date field
EXECUTION_TIME = Time field

ibase_execute($q, "15:00", 670); - FAILD
ibase_execute($q, 15 * 3600, 670); - OK

Reproduce code:
---------------
<?php

ini_set('ibase.timeformat', "%H:%M");
ini_set('ibase.dateformat', "%d.%m.%Y");
ini_set('ibase.timestampformat', "%d.%m.%Y %H:%M");

ibase_connect($_CONF['DB']['LOCAL']['HOST'], $_CONF['DB']['LOCAL']['USER'], $_CONF['DB']['LOCAL']['PASS'], "UTF8");

$q = ibase_prepare("UPDATE ORDERS SET EXECUTION_TIME = ? WHERE ID = ?");
ibase_execute($q, "15:00", 670);

$q = ibase_query("SELECT EXECUTION_DATE, EXECUTION_TIME FROM ORDERS WHERE ID = 670");
$r = ibase_fetch_object($q);

print_r($r);


Expected result:
----------------
stdClass Object
(
    [EXECUTION_DATE] => 05.01.2009
    [EXECUTION_TIME] => 15:00
)


Actual result:
--------------
stdClass Object
(
    [EXECUTION_DATE] => 05.01.2009
    [EXECUTION_TIME] => 31:00
)
/*
When adding IBASE_UNIXTIMES flag, like:
$r = ibase_fetch_object($q, IBASE_UNIXTIMES);
then [EXECUTION_TIME] => -1
*/