四日(よっか)

よっか
noun
four days; fourth day
time-general
1. four days
A duration of four days.
四日(よっか)かかります。
It takes four days.
四日(よっか)前(まえ)に届(とど)きました。
It arrived four days ago.
四日(よっか)間(かん)の出張(しゅっちょう)です。
It's a four-day business trip.
あと四日(よっか)で終(お)わる。
It will be finished in four days.
四日(よっか)も待(ま)った。
I waited for four days.
2. the fourth (day of the month)
The fourth day of any month.
5月(がつ)四日(よっか)に会(あ)いましょう。
Let's meet on May 4th.
四日(よっか)は休(やす)みですか。
Is the 4th a day off?
来月(らいげつ)四日(よっか)に届(とど)きます。
It will arrive on the 4th of next month.
四日(よっか)までに準備(じゅんび)してください。
Please prepare by the 4th.
四日(よっか)に予約(よやく)した。
I made a reservation for the 4th.

四日(よっか) uses native Japanese counting and means both "four days" (duration) and "the 4th" (date).

Usage

Days 11-31 use regular 十一日(じゅういちにち) pattern, except 十四日(じゅうよっか), 二十日(はつか), 二十四日(にじゅうよっか).

Counting patterns (SPECIAL READINGS)

Related Words

Compare: 八日(ようか) (8th; easily confused reading)
Related: 〜間(かん) (duration suffix)
Related: 三日(みっか) (three days)
Related: 五日(いつか) (5th of the month)
Related: 六日(むいか) (six days)
Related: 十日(とおか) (ten days, tenth day)
Related: 七日(なのか) (seven days, seventh day)
Related: 二日(ふつか) (two days)
Related: 九日(ここのか) (nine days, ninth day)
basic
Added 2026.1.11 19:10 · Revised 2026.10.10 4:21
02500/02985_yokka