00:00Gweler BBC Radio 5 live10/12/2019BBC Radio Cymru Duration: 5 awr, 30 o funudau Tue 10th Dec 2019, 00:00 on BBC Radio CymruMae Radio Cymru'n ymuno â 5 live dros nos. Radio Cymru joins 5 live overnight.GenresFactualBrandGweler BBC Radio 5 live Source: BBC Online