Description:
------------
M-j-Y format dates are parsed correctly if the day is 10-31, but as M-j-Hi if the day is 1-9. Or, you could say that M-j-Hi format dates are parsed correctly if the day is 1-9, but incorrectly if the day is 10-31.

Y-M-j format dates are parsed correctly if the day is 10-31, but as Y-M in the timezone UTC-j if the day is 1-9. Or, you could say that this odd method of specifying the time zone fails for UTC-10, UTC-11, and so on.

Both M-d-Y and Y-M-d formats are parsed correctly for all days.

I would find it more consistent if the M-j-Y and Y-M-j formats were recognized for all days, as the other option would conflict with M-d-Y and Y-M-d recognition and both "M-j-Hi" and "Y-M"-with-timezone seem to be unlikely input formats.

This bug is also present in PHP 5.2.6.

Reproduce code:
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date_default_timezone_set("UTC");
echo date("Y-m-d H:i:s\n", strtotime("Dec-9-2006"));
echo date("Y-m-d H:i:s\n", strtotime("9-Dec-2006"));
echo date("Y-m-d H:i:s\n", strtotime("2006-Dec-9"));
echo date("Y-m-d H:i:s\n", strtotime("Dec-10-2006"));
echo date("Y-m-d H:i:s\n", strtotime("10-Dec-2006"));
echo date("Y-m-d H:i:s\n", strtotime("2006-Dec-10"));


Expected result:
----------------
2006-12-09 00:00:00
2006-12-09 00:00:00
2006-12-09 00:00:00
2006-12-10 00:00:00
2006-12-10 00:00:00
2006-12-10 00:00:00


Actual result:
--------------
2009-12-09 20:06:00
2006-12-09 00:00:00
2006-12-01 09:00:00
2006-12-10 00:00:00
2006-12-10 00:00:00
2006-12-10 00:00:00