Referring to Daniel 9:24-27, he says, that he points out the time that his, the antichrist's  tyranny shall last, during which the saints shall be put to flight, they who offer a pure sacrifice unto God. And in the middle of the week,the sacrifice and the libation shall be taken away and the abomination of desolation [shall be brought] into the temple: even unto the consummation of the time shall the desolation be complete.

      Three-years and six-month makes the half-week, with seven-years making the full week to be fullfilled at the end of this age by a seven-year treaty leading to the  return of Jesus..