Only for the April 30, 2017 broadcast on 6145 kHz the Mighty KBC switches from 0000-0200 UT to 2300 UT (April 29) to 0100 UT (April 30). Done to, hopefully, avoid RHC QRM.
May 7, 2017 broadcast is 0000-0200 UTC on 9925 kHz.
(Kraig, KG4LAC via dxld yg)