today is Monday
Hoy es lunes y mañana será martes.
Today is Monday, and tomorrow will be Tuesday.
No sé si hoy es lunes o martes.
I don’t know if today is Monday or Tuesday.
Hoy es lunes, así que haré lo que siempre hago los lunes.
Today is Monday, so I’ll do what I always do on Mondays.
Is it Monday today?
El Museo del Prado está cerrado porque hoy es lunes.
The Prado Museum is closed because today is Monday.