Using le with days of the week + weekend

Question

'Et le dimanche, j'ai rejoint Mia' is one of the possible translation answers to: - " And on Sunday, I met up with Mia"

However, the lesson 'Using le with days of the week + weekend' states that "You will NOT use le when talking about weekdays in a specific context (on Monday):

Could you please explain why the use of LE in this context is a correct answer. Thank you

Accepted Answer

Although not covered in the course lesson, this has been addressed previously by Cécile. The article is ‘dropped’ (only) when the specific day is clear and close temporally - the next or the last, although in either case adding prochain or dernier can be done to clarify. Otherwise, an article is used  : https://progress.lawlessfrench.com/questions/view/in-both-cases-when-mentioning-the-day-of-the-week-they-used-an-article-but-the-lesson-states-that-wh 
Perhaps this could be added to the lesson as it is raised frequently, and seems fairly straightforward to cover with the clear explanation in Cécile’s linked response ?

Answer

Bonjour Stewart,
The lesson on "using le + days of the week" is an A1 lesson whilst the case from above (using 'le' + days of the week followed by past tense (or even Future tense)) would be considered a B1 level. Therefore we cannot include this case in the A1 lesson. However, this has been noted by the language and we will add this one to our list for future lessons.
I hope this is useful.
Bonne journée !