data: l_idx like sy-tabix.
read table l_t_range with key
     fieldname = 'CREATION_TIME'.
l_idx = sy-tabix.

data: Start__Time type sy-uzeit.
data: End__Time type sy-uzeit.
*Sets time to zero for four hours
If sy-uzeit < 14400.

  Start__Time = 0.

*     Number of seconds in a day, minus 1
  End__Time = 86399.
  Else.
  Start__Time = sy-uzeit - 14400.
  End__Time =  sy-uzeit.
Endif.

l_t_range-sign = 'I'.
l_t_range-option = 'BT'.
l_t_range-low = Start__Time.
l_t_range-high = End__Time.

modify l_t_range index l_idx.

p_subrc = 0.