CLASS zcl_abapgit_time DEFINITION
  PUBLIC
  CREATE PUBLIC .

  PUBLIC SECTION.
    TYPES: ty_unixtime TYPE c LENGTH 16.

    CLASS-METHODS get
      RETURNING VALUE(rv_time) TYPE ty_unixtime
      RAISING   zcx_abapgit_exception.
  PRIVATE SECTION.
    CONSTANTS: c_epoch TYPE datum VALUE '19700101'.

ENDCLASS.



CLASS ZCL_ABAPGIT_TIME IMPLEMENTATION.


  METHOD get.

    DATA: lv_i       TYPE i,
          lv_tz      TYPE tznzone,
          lv_utcdiff TYPE tznutcdiff,
          lv_utcsign TYPE tznutcsign.


    lv_i = sy-datum - c_epoch.
    lv_i = lv_i * 86400.
    lv_i = lv_i + sy-uzeit.

    CALL FUNCTION 'TZON_GET_OS_TIMEZONE'
      IMPORTING
        ef_timezone = lv_tz.

    CALL FUNCTION 'TZON_GET_OFFSET'
      EXPORTING
        if_timezone      = lv_tz
        if_local_date    = sy-datum
        if_local_time    = sy-uzeit
      IMPORTING
        ef_utcdiff       = lv_utcdiff
        ef_utcsign       = lv_utcsign
      EXCEPTIONS
        conversion_error = 1
        OTHERS           = 2.
    IF sy-subrc <> 0.
      zcx_abapgit_exception=>raise( 'Timezone error' ).
    ENDIF.

    CASE lv_utcsign.
      WHEN '+'.
        lv_i = lv_i - lv_utcdiff.
      WHEN '-'.
        lv_i = lv_i + lv_utcdiff.
    ENDCASE.

    rv_time = lv_i.
    CONDENSE rv_time.
    rv_time+11 = lv_utcsign.
    rv_time+12 = lv_utcdiff.

  ENDMETHOD.                    "get
ENDCLASS.