However, as in much of Europe, the days of the week begin with Monday in Hispanic countries, rather than Sunday. So the week runs from Monday through Sunday on calendars.
Be careful when someone tells you "at the beginning of the week." Ask for a specific day.
The most important things to remember about the days of the week are that
- Like months and seasons, the days of the week are not capitalized.
| lunes: | Monday |
| martes: | Tuesday |
| miércoles: | Wednesday |
| jueves : | Thursday |
| viernes: | Friday |
| sábado: | Saturday |
| domingo: | Sunday |
- All days of the week are masculine
el lunes, el martes, el miércoles, el jueves, el viernes, el sábado, el domingo
- To say that you are doing something "on a certain day or days"
You will use the definite articles (el, los) to express this.
For example,
"I study on Fridays" is expressed as Yo estudio los viernes.
"I will start on Monday" is expressed as Empiezo el lunes.
- To say that "Today is Monday,"
we do not need to use an article - just as in English: Hoy es lunes.

