The following have published their dates and times for quarterly financial report conference calls: Las Vegas Sands Corp. (LVS) on Tuesday, May 3 at 1:30 p.m. PDT. MTR Gaming Group Inc. (MNTG) on Thursday, May 5 at 1:30 p.m. PDT, Melco Crown Entertainment Ltd. (MPEL) on Thursday, May 19 at 5:30 a.m. PDT.