I thought it was 24 months but that may have changed as you say. The exams are not that much fun so I would be sure I could get a ride in a two pilot aircraft before the exam status expires. I know of some guys that have gotten their ATPLH on IFR 212's, Alpine may have even had one in the past (might still) but otherwise it is not that simple. If you can get a check-ride you will be given an ATPLH restricted for utility use only until you fulfill the rest of the requirements. I believe that equals 50 hrs night PIC (or two pilot crew) and 35 hrs instrument, at that point you will be able to carry passengers VFR. Good luck.