Converting days into hours and adding this hour to the time

Question

Hi Gurus!
I ahve  a query that outputs the total time between two periods in one column , total number of days between two periods  in onne column. I want to combine those together and show it in hours . For example if the time column shows 7:41(7 hours  and 41 minutes ) and teh days column shows 1 day , I want to combine those two columns and show as one column i.e 24 hours plus 7 hours and 41 minutes as a total of 31 hours and 41 minutes. I had written the follwwing code in the query that calculated the two seprately , can anyone please tell me how to go about converting this hour into time format and then adding the two to get it in total number of hours and minutes in my query.
concatenate vttk-datbg vttk-uatbg into lv_start_time.
    concatenate vttk-daten vttk-uaten into lv_end_time.
    gv_ftstm = lv_end_time - lv_start_time.
    gv_total_time = gv_ftstm+8(6).
    if not ( vttk-datbg is initial
          or vttk-daten is initial ).
      gv_total_days = gv_ftstm+0(8).
    else.
      clear: gv_total_days.
    endif.
    if not p_bl_lns is initial.
      read table gt_vttk with key tknum = vttk-tknum.
      if sy-subrc <> 0.
        append vttk to gt_vttk .
      else.
        clear: vttk-distz,
               vttk-gesztda,
               vttk-fahztda,
               vttk-warztda,
               gv_total_days,
               gv_total_time.
      endif.
    endif.
The gv_total_days have been declared as type P lenght 6, outlenth 10 and decimal 02, and
gv_time as VTTK-FAHZTDA.
Thnaks

Answer 1

Does this help ?
CONVERT DATE par_date TIME par_time INTO
          TIME STAMP par_timestamp TIME ZONE par_time_zone.
also use fm:  SD_DATETIME_DIFFERENCE
01/01/2009
12:00:00
01/02/2010
11:00:00
output:                             365
                             23
365 * 24 = tine in Hrs + 23 hrs