いつ

adverb

when

1. when

A question word asking about time. Used to inquire when something happens, happened, or will happen.

When did you come to Japan?

When is the meeting?

Anytime is fine.

いつでも means 'anytime'

When does summer vacation start and end?

いつから = from when, いつまで = until when

I want to go to Japan someday, but I don't know when I'll be able to go.

いつか = someday

いつ is one of the essential question words (5W1H) used to ask about time.

COMMON PATTERNS:

RELATED EXPRESSIONS:

NOTE:
Unlike 何時(なんじ) (what time), いつ asks about dates or general timing rather than specific clock time.

Related Words