Portuguese Phrase
Quando aconteceu?
Meaning
This phrase is used to ask about the specific time or date a past event occurred. It combines the interrogative 'quando' with the past tense of the verb 'acontecer' to seek chronological information about a finished action.
When to use
Use this phrase when someone tells you about an event, news, or a personal story and you want to know the timing. It is appropriate for both formal inquiries and casual conversations.
✦Grammar Breakdown
Quandoaconteceu
Quando
An interrogative adverb used to ask about time, equivalent to 'when' in English.
Aconteceu
The third-person singular of 'acontecer' in the Pretérito Perfeito, used for completed actions in the past.
🗨In Conversation
Houve um acidente na rua principal.
There was an accident on the main street.
Nossa! Quando aconteceu?
Wow! When did it happen?
✕Common Mistakes
Quando acontece?
This uses the present tense ('When does it happen?'). Use the preterite 'aconteceu' for past events.
Quando foi aconteceu?
Avoid using 'foi' as an auxiliary verb here; 'acontecer' should be conjugated directly.
↔Alternatives
Em que momento isso ocorreu?
At what moment did that occur?
A que horas foi isso?
What time was that?
Cultural Tip
In Brazilian Portuguese, it is very common to add 'isso' (that) at the end, as in 'Quando aconteceu isso?', to make the sentence sound more natural. In Portugal, the phrase is often kept short, but the final vowels are usually pronounced more closed than in Brazil.

