Korean phrase
언제 발생했나요? eon je pal saeng haen na yo
Meaning
When did it happen?
When to use it
This expression asks when something happened. It is polite without being too formal and is useful in everyday conversation or workplace reports.
Example dialogue
서버에 오류가 생겼어요. seo beo e o ryu ga saeng gyeo sseo yo
There was an error on the server.
언제 발생했나요? eon je pal saeng haen na yo
When did it happen?