Japanese Time Expressions: Days, Weeks, Months, and Key Time Words

Talking about time in Japanese requires knowing the right vocabulary for days, weeks, months, and relative time expressions. This guide covers them all.

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At a Glance: Relative Time

JapaneseReadingMeaning
今日きょう (kyou)Today
明日あした / あすTomorrow
昨日きのう (kinou)Yesterday
今週こんしゅうThis week
来週らいしゅうNext week
先週せんしゅうLast week
今月こんげつThis month
来月らいげつNext month

Days of the Week

JapaneseReadingDay
月曜日げつようびMonday
火曜日かようびTuesday
水曜日すいようびWednesday
木曜日もくようびThursday
金曜日きんようびFriday
土曜日どようびSaturday
日曜日にちようびSunday

Months and Dates

Months: simply 〇月 (〇-gatsu). January = 一月 (ichigatsu), February = 二月, … December = 十二月.

Days of month: 〇日 (〇-nichi). BUT: Day 1 = 一日 (tsuitachi), Day 2 = 二日 (futsuka), Day 3 = 三日 (mikka), Day 4 = よっか, Day 5 = いつか… Day 14 = じゅうよっか, Day 20 = はつか, Day 24 = にじゅうよっか. These irregular readings must be memorized!

Yuka

Why are some dates irregular? Like はつか for the 20th?

Rei

These come from old Japanese counting words — they predate the Chinese-derived numbers Japan also uses. はつか (20th) from はた (twenty in old Japanese). You just have to memorize: 1日 (tsuitachi), 2日-10日 (futsuka through tooka), 14日 (juuyokka), 20日 (hatsuka), 24日 (nijuuyokka).

Yuka

What’s the most natural way to say “the day after tomorrow”?

Rei

明後日 (あさって, asatte) = day after tomorrow. 一昨日 (おととい, ototoi) = day before yesterday. These are handy to know! 一昨昨日 (さきおととい) = three days ago, but that one is rarely used.

5 Practice Sentences

#JapaneseEnglish
1来週の月曜日に会議があります。There’s a meeting next Monday.
2昨日は何をしましたか?What did you do yesterday?
3私の誕生日は5月20日です。My birthday is May 20th.
4明後日まで待ってもらえますか?Can you wait until the day after tomorrow?
5今月末に締め切りがあります。There’s a deadline at the end of this month.

Quick Quiz

1. How do you say “last week”? → 先週 (senshuu)

2. What is the reading of 20日? → はつか (hatsuka)

3. How do you say “day after tomorrow”? → 明後日 (asatte)

Practice in the Comments!

Try using one of today’s words in your own sentence and post it in the comments! Join the Top Commenters ranking!

Keep Learning: Vocabulary Hub | N5 Vocabulary | Counter Words


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