I've just been curious about this. Why is it that saying a day of the week, something like "It's monday" uses 'nous'? as in:
Nous sommes lundi.
Am I able to say it another way? is using:
Aujourd'hui c'est lundi. / C'est lundi.
an acceptable format for a day of the week? Furthermore, if that's the case, can I use
On est lundi.
in less formal contexts? I just want to know which of these is correct to use, and why it is that 'nous' is used pour les jours de la semaine.