"Is today Saturday or Sunday?"
Translation:Aujourd'hui nous sommes samedi ou dimanche ?
Well, that's interesting. In the notes for this section, it simply says "The most formal way to express a date in French is with c'est". It doesn't say you can't use c'est to describe the current day.
Also, in this section, I've seen phrases like "Aujourd'hui c'est mardi". Here's an example: https://www.duolingo.com/comment/561897.
This would appear to be using "c'est" to describe the current day. Is Duolingo in error here? Can we perhaps get a second opinion from another native speaker?
Yes: c'est..., nous sommes..., on est... followed by the word for a day of the week can all be used to say "it is..." that day of the week.
c'est vendredi = nous sommes vendredi = on est vendredi = it is Wednesday...
...are all correct responses to the question "What day is it today?"
That is the point of the exercise. It says to check all the correct answers so it is not odd for all to be correct. That is what makes it a good exercise because it makes you pay attention and test your ability to recognize when the same idea being conveyed in different ways...and when a sentence is close but not quite accurate.
If you look at the top of this page where Duo has the question and the answer, you will note that Duo does not use c'est here.
Perhaps you could post what you were looking at when you saw Duo using c'est. Not every one coming to this comment page comes from the exact same example. Many come from multiple choice questions.
It is always good to indicate what the actual questions and answers are, if they are different from this page. I am surprised to see you get a preferred answer to a question that is different from the one given on the comments page. An alternative answer maybe, but a preferred answer to an identical question differing from the given answer on the linked comment page is a real surprise to me.
O.K Here is how it works.
When speaking of the day of the week that you are experiencing, the form is nous sommes/on est because you and your reader/listener are that day. Other languages and cultures, other calendars, other parts of the world on the other side of the international dateline, whatever may use different naming systems. But for you and everybody that counts for and your audience, you are that particular day.
In English and many languages, we say that it is a certain day even though clearly it is not for much of the world. Some languages focus more accurately on what they are experiencing. French is one of them.
But this Duo question is different. It is not about what day anyone is experiencing. It is about a more general question of date and is phrased in a particular way.
See the comment from mere_des_chats a little bit above for yours for how it can be applied, if you choose to, on this type of example.
My understanding is you only ever use a phrase like il est samedi when answering a question about when something will take place. Like "When is the wedding? It is on Friday" Quand est le mariage ? Il est vendredi.
When talking about what day it is today, you use c'est or nous sommes or on est. I suppose that is just how it is in French.
Today is Thursday:
Aujourd'hui, c'est jeudi
Aujourd'hui, nous sommes jeudi
Aujourd'hui, on est jeudi
The questions of course invert to Aujourd'hui...est-ce jeudi ?, ...sommes-nous jeudi ?, and est-on jeudi ?
Well, I believe articles with days mean plural, eg je vais au marché le samedi means "I go to the market on *Saturdays" while je vais au marché samedi* just means "I will go to the market on Saturday", if I am not mistaken.
Your suggested answer looks like it is saying "is it that/which Sunday?"
If you d'on't want to be too scholar, here is a list of solutions actually used in day to day french. First, 'aujourd'hui' is generally omitted because french knows you are speaking about 'today' Second, 'Est-il samedi ou dimanche ?' is correct but almost never used except in literature. Better are: Sommes-nous samedi ou dimanche ? Est-on samedi ou dimanche ? Actually used expressions are: * 'Est-ce qu'on est samedi ou dimanche' ? OR 'On est samedi ou dimanche ?'