Funny you mention that, as I was hearing it at the same time, 0540-0559 UTC on Sept. 14, 2018 (Sept. 13 local date), on 5960 kHz from here in Lake Stevens, Wash. Heard some nice African music, followed by the female host talking to callers on the phone. Then, male talking over more music just before signoff at 0559 UTC. Compared what I was hearing to the station’s online stream to make sure it was Ndarason.
I've heard Radio Ndarason International before, but not at this time or frequency, which is often subject to quite a bit of noise at that hour. it was a fair to good signal, though there was an annoying whistle/buzz from interference. It signed off right at 0559 UTC.