GrammarN52 min read2026-02-17

きかんの いいかた

Japanese words and patterns for expressing durations in hours, minutes, days, weeks, months, and years

Meaning

To express a duration of time in Japanese, you use a number followed by a time unit and the suffix 間 (kan). Different time units have different patterns: hours use 時間 (jikan), minutes use 分 (fun/pun) with optional kan, days use 日 (nichi) with kan, weeks use 週間 (shuukan), months use か月 (kagetsu) with optional kan, and years use 年 (nen) with optional kan. The suffix 間 (kan) clarifies that you're talking about a duration rather than a specific time point, though it can often be omitted after hours and weeks without changing the meaning.

Formation

Part of speechFormation
小时数字+じかん
分钟数字+ふん/ぷん(かん)
数字+にち(かん)
数字+しゅうかん
数字+かげつ(かん)
数字+ねん(かん)

Examples

  1. いちねんかん
    For one year; throughout a year

  2. ろっかげつ
    For six months

  3. じゅっしゅうかん
    For ten weeks

  4. ここのかかん
    For nine days

  5. とおかかん
    For ten days

Summary

  • Use 間 (kan) after time units to indicate duration, especially for days, months, and years
  • Some time units have irregular pronunciation patterns (e.g., 日 becomes いちにち, ふつか, みっか, よっか)
  • The suffix 間 can be omitted after 時間 (hours) and 週間 (weeks) and sounds more natural without it

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