vs 

QUICK ANSWER
"Martes" is a noun which is often translated as "Tuesday", and "viernes" is a noun which is often translated as "Friday". Learn more about the difference between "martes" and "viernes" below.
el martes(
mahr
-
tehs
)
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
masculine noun
a. Tuesday
El martes vamos a un partido de baloncesto.We're going to a basketball game on Tuesday.
Copyright © 2025 Dictionary Media Group, Inc.
el viernes(
byehr
-
nehs
)
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
masculine noun
a. Friday
A partir de ahora, se puede llevar ropa informal en el trabajo los viernes.From now on you can wear casual clothes to work every Friday.
Copyright © 2025 Dictionary Media Group, Inc.