The days of the week in Spanish are essential for scheduling, planning, and everyday conversation. They are all masculine nouns and are usually preceded by the definite article el (singular) or los (plural) when used to refer to specific days.
SpanishEnglishLiteral Meaning
lunesMonday(from Luna) Moon
martesTuesday(from Marte) Mars
miércolesWednesday(from Mercurio) Mercury
juevesThursday(from Júpiter) Jupiter
viernesFriday(from Venus) Venus
sábadoSaturday(from Sabbath) Sabbath
domingoSunday(from Dominus) Lord's Day
  • Spanish weeks start on lunes (Monday), not domingo.
  • Days derived from celestial bodies reflect Roman influences.
  • Sábado and domingo have religious origins.
martes
lunes

Usage in Sentences

  • Voy a la playa el sábado. (I'm going to the beach on Saturday.)
  • El miércoles tenemos una reunión. (On Wednesday, we have a meeting.)
  • Los viernes salimos a cenar. (On Fridays, we go out to dinner.)
Note: When expressing habitual actions, use the plural form with los.
  • Los lunes estudio español. (On Mondays, I study Spanish.)
El miércoles tenemos una reunión
Los viernes salimos a cenar

Conclusion

Spanish days of the week reflect both astronomy and tradition, starting the week on Monday. Mastery of these terms enables precise communication about schedules and routines.
  • Spanish weeks start on lunes (Monday), not domingo.
  • Each day has a masculine noun form and Roman origin.
  • Use "el" for specific days and "los" for habitual actions.