cl_abap_tstmp=>systemtstmp_syst2utc(

    exporting
      syst_date = <wa_joblist>-strtdate
      syst_time = <wa_joblist>-strttime
    importing
      utc_tstmp = start_stamp ).

  cl_abap_tstmp=>systemtstmp_syst2utc(
    exporting
      syst_date = sy-datum
      syst_time = sy-uzeit
    importing
      utc_tstmp = now_stamp ).

  seconds = cl_abap_tstmp=>subtract(
      tstmp1 = now_stamp
      tstmp2 = start_stamp ).

Serkan AKKAVAK
Computer Engineer
SAP Department Deputy Manager
Contact : serkurumsal@yandex.com