Learn Spanish (Spain): El partido es el miércoles.

In English, we say 'on Wednesday', but in Spanish, you just use the masculine definite article el (the) before the day of the week to say something happens on that day. So, el miércoles means on Wednesday. Never use en for days of the week!

Miércoles ends in an 's'. How do we know it is singular?

In Spanish, all weekdays from Monday (lunes) to Friday (viernes) end in an 's' even when they are singular. We know this specific sentence is singular because it uses the singular article el and the singular verb es. To say 'on Wednesdays', you just change the article to plural: los miércoles.

Why do we use es here instead of está?

You might remember that estar is usually used for locations, but there is a special rule for events. When talking about where or when an event (like a match, a party, or a concert) takes place, you always use the verb ser. Since el partido is an event, we use es.

Why isn't miércoles capitalized?

Unlike in English, days of the week, months of the year, and languages are not capitalized in Spanish unless they are the very first word of a sentence.