German Phrase
Wann klappt es auf?
Meaning
Literally, 'When does it open?' It asks for the time a door, shop, event, or any opening action will happen. In everyday speech it can also mean 'When will it work out?' depending on context.
When to use
Use this question when you want to know the exact moment a place or thing becomes accessible – e.g., a store, museum, train doors, or a scheduled online meeting.
✦Grammar Breakdown
Wannklapptesauf
Wann (interrogative)
Used to ask about time, equivalent to 'when' in English.
klappt (verb klappen)
Present tense, 3rd person singular of 'klappen' meaning 'to work, to be successful' or, with 'auf', 'to open'.
es (pronoun)
Neutral pronoun referring to a thing, event, or situation.
auf (separable prefix)
When attached to 'klappen', the prefix moves to the end of the clause in main clauses.
🗨In Conversation
Wann klappt es auf?
When does it open?
Um acht Uhr morgens, dann kannst du reingehen.
At eight o’clock in the morning, then you can go in.
✕Common Mistakes
Wann klar es auf?
‘klar’ means ‘clear’; the correct verb is ‘klappt’ (from klappen).
Wann es klappt auf?
If you forget the separable prefix position, you might say ‘Wann es klappt auf?’ which is ungrammatical.
Wann aufklappt es?
The verb is not ‘aufklappt’; the prefix stays separate in main clauses.
↔Alternatives
Um wie viel Uhr öffnet es?
At what time does it open?
Wann geht es los?
When does it start?
Ab wann ist es geöffnet?
From when is it open?
Cultural Tip
In German-speaking countries, opening times are often posted on a sign called a 'Öffnungszeiten' board. When asking locals, it's polite to use 'Bitte' (please) and to thank them with 'Danke' after they answer. Note that 'klappt' can also mean 'works' – so if you ask about a service (e.g., a Wi‑Fi connection) you might get the answer 'Ja, das klappt' (Yes, that works).