"Sunday night"

Translation: nos Sul

[JettyJ]

Why not Nos dydd Sul?

[q3DyeyIO]

Earlier in this set of sentences “nos dydd Sul” was given as “another correct answer”, which is why I put it as my answer this time - having previously put “nos Sul”. SO WHY IS IT NOW WRONG!

[ibisc]

Either nos Xxx or dydd Xxx, never both together. For example:

• nos Sul - Sunday evening; Sunday night
• dydd Sul - Sunday

dydd Sul can be used in combination with bore or prynhawn:

• bore dydd Sul; bore Sul - Sunday morning
• prynhawn dydd Sul; prynhawn Sul - Sunday afternoon

See the course notes. To find the course notes generally, go to https://forum.duolingo.com/topic/924/hot and see 'Course tips and notes'. The 'duome' link there is useful for browsing all the notes in one place.

[PippinBaby]

I agree. I got that wrong, too.