Application Express :: Current_timestamp Vs Daylight Saving Time

the time in my online application is 1 hour later than is actually is. So 21.30is actually 20.30. This is my code:

    select 1
    from   vex_rondes rde
    where rde.datum_einde < current_timestamp
    and    rde.id = b_rde_idrde.datum_einde

is a date column filled with dates of course ins this format: 10-01-2013 20:45 (10th January 2013 20h45).How can I get this current_timestamp correct?

select 1
    from   vex_rondes rde
    where rde.datum_einde+(1/24) < current_timestamp
    and    rde.id = b_rde_idbut that's not very elegant nor generic...