五日(いつか)

いつか
noun
5th of the month; five days
time-general
1. the 5th of the month
Used to refer to the fifth day of a calendar month.
五月(ごがつ)五日(いつか)はこどもの日(ひ)だ。
May 5th is Children's Day.
来月(らいげつ)の五日(いつか)に会議(かいぎ)がある。
There's a meeting on the 5th of next month.
毎月(まいつき)五日(いつか)には給料(きゅうりょう)が振(ふ)り込(こ)まれる。
My salary is deposited on the 5th of every month.
2. five days (duration)
A span of five days, often in the form 五日間(いつかかん).
五日間(いつかかん)出張(しゅっちょう)に行(い)く。
I'm going on a five-day business trip.
あれから五日(いつか)経(た)った。
Five days have passed since then.
連休(れんきゅう)は今年(ことし)も五日間(いつかかん)続(つづ)く予定(よてい)だ。
This year too the consecutive holidays are scheduled to last five days.

五日(いつか) uses the native Japanese counting series for days 1–10 of the month: 一日(ついたち), 二日(ふつか), 三日(みっか), 四日(よっか), 五日(いつか), 六日(むいか), 七日(なのか), 八日(ようか), 九日(ここのか), 十日(とおか). The same forms also count durations in days (except 一日(いちにち) for 'one day' as a duration).

Watch out

Do not confuse with いつか (someday, sometime), which is written either in kana only or with kanji 何時(いつ)か. The two are unrelated despite the identical reading.

Common collocations

Related Words

Related: 四日(よっか) (four days)
Related: 六日(むいか) (six days)
Related: 七日(なのか) (seven days, seventh day)
Related: 九日(ここのか) (nine days, ninth day)
general
Added 2026.5.31 12:09 · Revised 2026.10.10 4:21
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