How to Say "nighttime" in Spanish
The Spanish word for “nighttime” is “nocturno” — A2 level. This is a very common word in everyday Spanish.

Examples
El búho es un animal nocturno; duerme de día.
The owl is a nocturnal animal; it sleeps during the day.
Mi trabajo es en el turno nocturno, de 10 p.m. a 6 a.m.
My job is on the night shift, from 10 p.m. to 6 a.m.
La vida nocturna de Madrid es muy famosa.
Madrid's nightlife is very famous.
Changing Endings
Since 'nocturno' is a descriptive word (adjective), its ending must match the noun it describes. Use '-o' for masculine singular (turno nocturno), '-a' for feminine singular (vida nocturna), '-os' for masculine plural, and '-as' for feminine plural.
Forgetting Agreement
Mistake: “Hago ejercicio en el gimnasio nocturna.”
Correction: Hago ejercicio en el gimnasio nocturno. ('Gimnasio' is masculine, so 'nocturno' must also be masculine.)
Related Translations
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