Why do you need both options with dydd and with ddydd? Is it the same bug? And if so, which option is the correct?
ddydd Llun is better Welsh for 'on Monday'. dydd Llun does get used in the wild, but it is wrong, really. We might get rid of dydd Llun once Duo fix the zombie sentence bug.
Stick with ddydd Llun in your own usage.
Diolch, I just saw this thread and it answers my previous question. Mae'n ddrwg gen i.
Still showing ddydd llun as incorrect