In December 2020, the median waiting time was 2 hours 44 minutes, up from 2 hours 30 minutes in November 2020 but the same time as in December 2019.
Ym mis Rhagfyr 2020, canolrif yr amser aros oedd 2 awr a 44 munud, i fyny o 2 awr 30 munud ym mis Tachwedd 2020 ond yr un amser ag ym mis Rhagfyr 2019.