Question

어젯밤 늦게까지 밖에 있었어요? -까지 is a particle marking the final limit of temporal or spatial intervals. It corresponds to 'until', 'to', or 'by' in English.The opposite meaning is conveyed by -부터, which is commonly used along with -까지 in expressions denoting either limits of a time interval. -에서 is used instead of -부터 when talking about locations.

Accepted Answer

Were you out late last night?

Front	어젯밤 늦게까지 밖에 있었어요?
Back	Were you out late last night?
Notes	-까지 is a particle marking the final limit of temporal or spatial intervals. It corresponds to 'until', 'to', or 'by' in English. The opposite meaning is conveyed by -부터, which is commonly used along with -까지 in expressions denoting either limits of a time interval. -에서 is used instead of -부터 when talking about locations.

까지 어젯밤 늦게까지 밖에 있었어요 Late Night Particle