Here are the days of the week in Spanish again:
- lunes – Monday
- martes – Tuesday
- miércoles – Wednesday
- jueves – Thursday
- viernes – Friday
- sábado – Saturday
- domingo – Sunday
Did you notice how the days in Spanish all begin with a lowercase letter (not a capital letter).
In English, when you write the word Monday, the rule is that it always starts with a capital M. The same for the rest of the days. Tuesday is always written with a big T (or capital T) instead of a small T (lowercase T), even if the day is in the middle of a sentence.
However, the days of the week in Spanish do NOT start with a capital letter.
You do not write the day Lunes with a capital L. It is always written as lunes with a lowercase L. The same for the other days of the week. You write martes ✅ and not Martes ❌.
- lunes ✅ – Lunes ❌
- martes ✅ – Martes ❌
- miércoles ✅ – Miércoles ❌
- jueves ✅ – Jueves ❌
- viernes ✅ – Viernes ❌
- sábado ✅ – Sábado ❌
- domingo ✅ – Domingo ❌
Of course, if a day appears at the beginning of a sentence, then you write that day with a capital letter ONLY because it is the first word in that sentence, not because it is a day.
One exception is when you are talking about Viernes Santo (Good Friday) where viernes is written with a capital letter because it is the name of a (religious) holiday.
