ASP.Net AjaxToolkit MaskedEditExtender defaults to AM only when system

[p91]

I am using MaskedEditExtender with MaskedEditValidator on TextBox with 12 hour time format...
The expected behavior is... when user enters date only and presses "Tab" key
(leaving time values blank), it should fill-in system time in correct AM/PM format.

It does not work as expected when system time range is 12:01 PM to 1:00 PM...

System date/time: December 16, 2010 9:35 AM
User enters 12/16/2010 __:__ and press tab key --> It defaults to 12/16/2010 09:35 AM...
which is correct.


System date/time: December 16, 2010 12:35 PM
User enters 12/16/2010 __:__ and press tab key --> It defaults to 12/16/2010 12:35 AM...
which is not correct. ---------------------> It should default to 12/16/2010 12:35 PM
-------------------