Can someone tell me why this statement is failing?

Can anyone tell me why this SQL statement is not
matching with the row from the table below? I think
I'm going mad!

#####################################
SQL Statement
#####################################

SELECT * FROM t_bell_schedule WHERE calendar_day =
'2004-04-12' AND start_time_minutes >= '1082374200'
AND end_time_minutes <= '1082375100';

#####################################
Current DB Data to match
#####################################
calendar_day | period_letter | start_time_minutes |
end_time_minutes
--------------+---------------+--------------------+------------------2004-04-12   | B             |         1082374440
|    1082377320
 

#####################################
DB Structure 
#####################################
      Column       |            Type             |                                 Modifiers

--------------------+-----------------------------+--------------------------------------------------------------------------------bell_schedule_uid
| integer                     |
 
not null default
nextval('public.t_bell_schedule_bell_schedule_uid_seq'::text)calendar_day       | date
|period_letter     | character varying(4)        |period             | character varying(4)        |start_time
|time without time zone      |end_time           | time without time zone      |total_minutes      | integer
        |activestatus       | integer                     |datecreated        | timestamp without time zone
|datemodified      | timestamp without time zone |start_time_minutes | integer                     |end_time_minutes
|integer                     |
 


Cheers,
Pete


    
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