Ce bar est ouvert toute la nuit.

From Lesson 269:Shops and eating out·French

Questions & Answers about Ce bar est ouvert toute la nuit.

Why is it toute and not tout in this sentence?
The word tout acts as an adjective here, so it has to agree in gender and number with the noun it modifies. Because nuit is feminine and singular, we use toute.
What is the difference between toute la nuit and toutes les nuits?
Toute la nuit means "all night long," referring to the entire duration of one specific night. If you changed it to the plural toutes les nuits, it would change the meaning to "every night."
Could I use soir instead of nuit here?
You could say tout le soir, but it changes the meaning! Le soir refers to the evening (roughly from sunset until you go to bed). La nuit refers to the deep night when people are typically sleeping. Since this describes a bar staying open into the very late/early morning hours, nuit is the best fit.
Why do we say est ouvert instead of just using the verb ouvre?
Ouvre is an action meaning "opens" (for example, Le bar ouvre à 20h means "The bar opens at 8 PM"). Here, ouvert is a past participle being used as an adjective after the verb être (est) to describe the continuous state of the bar being "open" for the whole night.

Learn Ce bar est ouvert toute la nuit and more in French

All course content and exercises are completely free — no paywalls, no trial periods, no signup needed.

  • ✓ Practice with interactive exercises
  • ✓ Track your progress with spaced repetition
  • ✓Learn at your own pace — completely free