Time in Japanese: How to Tell the Clock, Days and Dates

Ever stood at a train platform in Japan, staring at the departure board, trying to decode when your train actually leaves? Or maybe you've been that person nodding along when someone suggests a meeting time, secretly panicking because you're not quite sure if they said 4:00 or 4:40.

Here's the thing about time in Japanese: it looks intimidating with all those kanji and irregular readings, but there's actually a beautiful logic hiding underneath. Unlike English where we randomly decided to call the first month "January" (seriously, where did that even come from?), Japanese just says "month 1." Simple, right?

This guide starts where most people actually need it, reading the clock, so hours and minutes come first. Days, months and dates follow, then the particles and phrases that let you make plans. No textbook fluff, just the patterns that matter.

Table of Contents

• Telling Time (Hours and Minutes)
• Parts of the Day
• Why Japanese Time Expressions Are Different
• Days of the Week
• Months of the Year
• Dates and Days of the Month
• Relative Time Expressions
• Time Duration vs. Points in Time
• Common Time-Related Particles
• Real-World Conversation Examples
• Advanced Time Expressions
• Common Mistakes to Avoid
• Practice Exercises
• Wrapping Up: Mastering Japanese Time

Telling Time (Hours and Minutes)

Japanese time uses counters: 時 (ji) for hours and 分 (fun/pun) for minutes.

Hours (〜時)

Special readings:

• 4:00 is よじ (yoji), not しじ or よんじ
• 9:00 is くじ (kuji), not きゅうじ

Minutes (〜分)

Minutes change between ふん (fun) and ぷん (pun) depending on the sound that comes before.

Pattern for ぷん (pun):
After 1, 3, 4, 6, 8, 10 → use ぷん
After 2, 5, 7, 9 → use ふん

Half past: Use 半 (han)

三さん時じ半はん
Sanji han
"3:30" (literally "3 o'clock half")

Complete Time Examples

一いち時じ十じゅっ五ご分ふん
Ichiji jūgofun
"1:15"

七しち時じ半はん
Shichiji han
"7:30"

九く時じ四よん十じゅっ五ご分ふん
Kuji yonjūgofun
"9:45"

Asking What Time It Is

今いま、何なん時じですか？
Ima, nanji desu ka?
"What time is it now?"

AM and PM

午前 (gozen) - AM, morning
午後 (gogo) - PM, afternoon/evening

午ご前ぜん九く時じ
Gozen kuji
"9:00 AM"

午ご後ご三さん時じ半はん
Gogo sanji han
"3:30 PM"

24-Hour Time: Japan commonly uses 24-hour time, especially for transportation schedules and official announcements. So you might hear: 十三じゅうさん時じ (13:00 / 1:00 PM) 二十一にじゅういち時じ (21:00 / 9:00 PM)

Parts of the Day

Usage examples:

朝あさご飯はん (asagohan) - breakfast
昼ひるご飯はん (hirugohan) - lunch
夜よるご飯はん (yorugohan) / 晩ばんご飯はん (bangohan) - dinner

Why Japanese Time Expressions Are Different

Now that the clock makes sense, here is the wider picture before we get to the calendar. Japanese approaches time in a way that feels both familiar and foreign. Like English, it has specific words for days and months. Unlike English, it uses a counter system for many time expressions and follows different logic for dates.

Key differences you'll notice:

1. Counter-based system: Hours use 時 (ji), minutes use 分 (fun/pun), and days use different patterns
2. Logical numbering: Unlike English's "January, February," Japanese uses "1-month, 2-month" (一月、二月)
3. Special irregular readings: Certain dates and times have unique pronunciations
4. Context matters: The particle に marks specific times, while は marks the time frame you're discussing

Don't worry if this sounds complex: once you see the patterns, everything clicks into place.

Days of the Week

Japanese days of the week follow a beautiful pattern based on ancient Chinese elements and celestial bodies.

The Seven Days

Memory Tip

Notice the pattern: 月 (moon), 火 (fire), 水 (water), 木 (wood), 金 (metal), 土 (earth), 日 (sun)

These follow the traditional five elements (五行) plus the sun and moon. Once you learn the kanji, the days become easy!

Using Days in Sentences

Asking what day it is:

今日きょうは何なん曜よう日びですか？
Kyō wa nan'yōbi desu ka?
"What day is today?"

Answering:

今日きょうは月げつ曜よう日びです。
Kyō wa getsuyōbi desu.
"Today is Monday."

Making plans:

金きん曜よう日びに会あいましょう。
Kin'yōbi ni aimashō.
"Let's meet on Friday."

Casual Shorthand: In casual writing (texts, calendars), Japanese often drops the 曜日 and just uses the element kanji: 月 (Monday), 火 (Tuesday), 水 (Wednesday), etc. You'll see this on train schedules, calendars, and smartphones!

Months of the Year

Japanese months are beautifully simple. They're literally numbered 1 through 12 with 月 (gatsu) attached.

The Twelve Months

Important Notes

Special readings to watch:

• April: し月 (shigatsu), not よん月
• July: しち月 (shichigatsu), not なな月
• September: く月 (kugatsu), not きゅう月

These follow the most common readings, though you might occasionally hear alternatives in different contexts.

Using Months in Sentences

Asking about months:

誕たん生じょう日びは何なん月がつですか？
Tanjōbi wa nangatsu desu ka?
"What month is your birthday?"

Answering:

三さん月がつです。
Sangatsu desu.
"It's March."

Describing seasons:

日に本ほんでは、三さん月がつから五ご月がつまで春はるです。
Nihon dewa, sangatsu kara gogatsu made haru desu.
"In Japan, it's spring from March to May."

Dates and Days of the Month

This is where Japanese gets tricky. The first 10 days have irregular readings, and certain other dates follow special patterns.

Days 1-10 (Irregular Readings)

Memory Aid: These irregular readings come from the old Japanese counting system (ひとつ、ふたつ、みっつ, etc.). Notice: ふたつ → ふつか, みっつ → みっか, よっつ → よっか

Days 11-31

From the 11th onwards, most days follow a more regular pattern: number + 日 (nichi)

Special irregular dates marked with * :

• 14th: じゅうよっか (not じゅうよんにち)
• 20th: はつか (not にじゅうにち)
• 24th: にじゅうよっか (not にじゅうよんにち)

Saying Full Dates

Pattern: Year + Month + Date

二千二十五年にせんにじゅうごねん三月さんがつ十五日じゅうごにち
Nisen-nijūgo-nen sangatsu jūgonichi
"March 15, 2025"

Casual version (often drops year):

三月さんがつ十五日じゅうごにち
Sangatsu jūgonichi
"March 15th"

Asking About Dates

今日きょうは何なん月がつ何なん日にちですか？
Kyō wa nangatsu nannichi desu ka?
"What's today's date?"

誕たん生じょう日びはいつですか？
Tanjōbi wa itsu desu ka?
"When is your birthday?"

Relative Time Expressions

These are the words you'll use constantly in conversation.

Basic Time Words

Pattern Recognition

Notice the patterns:

今 (kon/kyo) = this
今日 (today), 今週 (this week), 今月 (this month), 今年 (this year)

先 (sen) = last/previous
先週 (last week), 先月 (last month)

来 (rai) = next/coming
来週 (next week), 来月 (next month), 来年 (next year)

More Relative Time

いつ (itsu) - when
今 (ima) - now
さっき (sakki) - just now, a moment ago
あとで (ato de) - later
もうすぐ (mōsugu) - soon
すぐに (sugu ni) - right away, immediately

Time Duration vs. Points in Time

This is crucial: Japanese distinguishes between a point in time and a duration of time.

Points in Time (Use に)

三さん時じに会あいましょう。
Sanji ni aimashō.
"Let's meet at 3 o'clock."

月げつ曜よう日びに行いきます。
Getsuyōbi ni ikimasu.
"I'm going on Monday."

Duration of Time (No particle or を)

三さん時じ間かん勉べん強きょうしました。
Sanjikan benkyō shimashita.
"I studied for three hours."

一いっ週しゅう間かん待まちました。
Isshūkan machimashita.
"I waited for one week."

Duration Counters

〜時間 (jikan) - hours (duration)
〜分間 (funkan) - minutes (duration)
〜日間 (nichikan) - days (duration)
〜週間 (shūkan) - weeks (duration)
〜ヶ月 (kagetsu) - months (duration)
〜年間 (nenkan) - years (duration)

Key Distinction: 三さん時じ (sanji) = 3 o'clock (point in time)
三さん時じ間かん (sanjikan) = 3 hours (duration)

三さん月がつ (sangatsu) = March (month name)
三さんヶ月げつ (sankagetsu) = 3 months (duration)

Common Time-Related Particles

に - Specific time point

Marks the exact moment when something happens.

七しち時じに起おきます。
Shichiji ni okimasu.
"I wake up at 7 o'clock."

月げつ曜よう日びに会かい議ぎがあります。
Getsuyōbi ni kaigi ga arimasu.
"There's a meeting on Monday."

Exception: Relative time words like 今日 (today), 明日 (tomorrow), 昨日 (yesterday) don't use に in casual speech.

今日きょう行いきます。(not 今日に)
Kyō ikimasu.
"I'll go today."

から - From (starting point)

午ご前ぜん九く時じから仕し事ごとです。
Gozen kuji kara shigoto desu.
"I work from 9 AM."

まで - Until, up to (ending point)

午ご後ご五ご時じまで働はたらきます。
Gogo goji made hatarakimasu.
"I work until 5 PM."

から...まで - From...to

月げつ曜よう日びから金きん曜よう日びまで学がっ校こうがあります。
Getsuyōbi kara kin'yōbi made gakkō ga arimasu.
"I have school from Monday to Friday."

ごろ / ぐらい - Around, approximately

ごろ - approximate point in time
ぐらい - approximate duration

三さん時じごろ帰かえります。
Sanji goro kaerimasu.
"I'll return around 3 o'clock."

二に時じ間かんぐらいかかります。
Nijikan gurai kakarimasu.
"It takes about 2 hours."

Real-World Conversation Examples

Making Plans

A: 明日あした、何なん時じに会あいましょうか？
Ashita, nanji ni aimashō ka?
"What time shall we meet tomorrow?"

B: 午ご後ご二に時じはどうですか？
Gogo niji wa dō desu ka?
"How about 2 PM?"

A: いいですね。じゃあ、二に時じに駅えきで。
Ii desu ne. Jā, niji ni eki de.
"Sounds good. Then at 2 o'clock at the station."

At Work

Manager: この資し料りょう、いつまでに必ひつ要ようですか？
Kono shiryō, itsu made ni hitsuyō desu ka?
"By when do you need these materials?"

You: 金きん曜よう日びまでにお願ねがいします。
Kin'yōbi made ni onegai shimasu.
"By Friday, please."

Scheduling an Appointment

Receptionist: ご予よ約やくは何なん月がつ何なん日にちがよろしいでしょうか？
Go-yoyaku wa nangatsu nannichi ga yoroshii deshō ka?
"What date would work for your appointment?"

You: 来週らいしゅうの水すい曜よう日び、午ご前ぜん十じゅう時じはどうですか？
Raishū no suiyōbi, gozen jūji wa dō desu ka?
"How about next Wednesday at 10 AM?"

At a Restaurant

Waiter: ご予よ約やくの時じ間かんは？
Go-yoyaku no jikan wa?
"What time is your reservation?"

You: 七しち時じ半はんです。
Shichiji han desu.
"7:30."

Talking About Your Daily Routine

Friend: 毎まい朝あさ、何なん時じに起おきますか？
Maiasa, nanji ni okimasu ka?
"What time do you wake up every morning?"

You: だいたい六ろく時じごろです。
Daitai rokuji goro desu.
"Around 6 o'clock usually."

Friend: 仕し事ごとは何なん時じからですか？
Shigoto wa nanji kara desu ka?
"What time does work start?"

You: 九く時じからです。八はち時じ間かん働はたらきます。
Kuji kara desu. Hachijikan hatarakimasu.
"From 9 o'clock. I work 8 hours."

Discussing How Long Something Takes

A: ここから空くう港こうまで、どのくらいかかりますか？
Koko kara kūkō made, dono kurai kakarimasu ka?
"How long does it take from here to the airport?"

B: 電でん車しゃで一いち時じ間かんぐらいです。
Densha de ichijikan gurai desu.
"About an hour by train."

Talking About Past Events

A: 昨日きのうの映えい画が、どうでしたか？
Kinō no eiga, dō deshita ka?
"How was yesterday's movie?"

B: とてもよかったです！三さん時じ間かんもあったけど、あっという間までした。
Totemo yokatta desu! Sanjikan mo atta kedo, atto iu ma deshita.
"It was really good! It was 3 hours long, but it flew by."

Advanced Time Expressions

Frequency Expressions

毎日 (mainichi) - every day
毎週 (maishū) - every week
毎月 (maitsuki) - every month
毎年 (maitoshi) - every year
毎朝 (maiasa) - every morning
毎晩 (maiban) - every night

毎まい朝あさ、ジョギングをします。
Maiasa, jogingu o shimasu.
"I jog every morning."

Counters for Times (Occurrences)

〜回 (kai) - times, occurrences

一いっ回かい (ikkai) - once
二に回かい (nikai) - twice
三さん回かい (sankai) - three times

週しゅうに三さん回かい、ジムに行いきます。
Shū ni sankai, jimu ni ikimasu.
"I go to the gym three times a week."

Period Expressions

〜前 (mae) - ago
〜後 (go/ato) - after, later

三さん日か前
Mikka mae
"Three days ago"

二に時じ間かん後
Nijikan go
"Two hours later"

Vague Time Expressions

最近 (saikin) - recently, lately
このごろ (kono goro) - these days
この間 (kono aida) - the other day
いつか (itsuka) - someday
いつも (itsumo) - always
たまに (tama ni) - occasionally
時々 (tokidoki) - sometimes

最さい近きん、忙いそがしいです。
Saikin, isogashii desu.
"I've been busy lately."

Seasonal Time

春 (haru) - spring
夏 (natsu) - summer
秋 (aki) - fall/autumn
冬 (fuyu) - winter

春はるに桜さくらを見みに行いきたいです。
Haru ni sakura o mi ni ikitai desu.
"I want to go see cherry blossoms in spring."

Common Mistakes to Avoid

Using に with Relative Time Words

Wrong: 今日きょうに行いきます

Correct: 今日きょう行いきます (no particle)

Why: Relative time words (今日, 明日, 昨日, etc.) typically don't take に in casual speech.

Confusing Time Point vs. Duration

Wrong: 三さん時じ勉べん強きょうしました (means "I studied at 3 o'clock")

Correct: 三さん時じ間かん勉べん強きょうしました ("I studied for 3 hours")

Mixing Up しち and よん

Wrong: 四し時じ (shiji)

Correct: 四よ時じ (yoji) for 4 o'clock

Why: 4 o'clock uses よ reading to avoid confusion with 死 (death).

Forgetting Half Past

Awkward: 三さん時じ三さん十じゅっ分ぷん

More Natural: 三さん時じ半はん (sanji han)

Why: Using 半 for "half past" is more natural and common.

Date Order Confusion

English Order: March 15, 2025

Japanese Order: 2025年ねん三さん月がつ十じゅう五ご日にち

Pattern: Year → Month → Day (largest to smallest)

Mixing Up Minutes Readings

Remember: ぷん after 1, 3, 4, 6, 8, 10 and ふん after 2, 5, 7, 9

五ご分ふん (gofun) ✓
六ろっ分ぷん (roppun) ✓

Practice Exercises

Exercise 1: Days and Dates

Translate to Japanese:

1. "What day is today?"
2. "Today is Wednesday."
3. "My birthday is March 5th."

Exercise 2: Telling Time

Write in Japanese:

1. 7:30 AM
2. 9:45 PM
3. "What time is it now?"

Exercise 3: Duration vs. Point in Time

Choose the correct form:

1. I studied for 2 hours: 二に時じ or 二に時じ間かん?
2. Let's meet at 3 o'clock: 三さん時じに or 三さん時じ間かんに?
3. It takes 30 minutes: 三さん十じゅっ分ぷん or 三さん十じゅっ分ぷん間かん?

Exercise 4: Real Conversation

Translate this dialogue:

A: "When are you free next week?"
B: "I'm free on Thursday afternoon."
A: "How about 2:30 PM?"
B: "Sounds good!"

Wrapping Up: Mastering Japanese Time

Time expressions in Japanese might seem overwhelming at first, but they follow logical patterns. Here's what makes the system work:

The Bottom Line:

1. Days and months are numbered - Once you know the numbers, you know the months
2. Irregular readings exist but are limited - Mostly in the first 10 days and certain times
3. Distinguish duration from point in time - 時 vs. 時間 matters!
4. Particles matter - に for specific times, no particle for relative times
5. Half past is special - Use 半 instead of saying 30 minutes

Most Important Patterns to Remember:

• Days: Number + 曜日
• Months: Number + 月
• Dates: 1-10 are irregular, then mostly regular
• Hours: Number + 時
• Minutes: Watch for ふん/ぷん changes
• Duration: Add 間 (kan) to show duration

Practice Tips:

1. Use your daily routine - Practice saying when you do things every day
2. Read train schedules - Great real-world practice for times
3. Make plans in Japanese - Even if just with yourself, practice scheduling
4. Check Japanese calendars - Get familiar with the date format

The more you use time expressions in real contexts, the more natural they become. Before long, you'll be making plans and telling time in Japanese without having to think about the rules at all.

Ready to level up your Japanese?

• Japanese Numbers 1 to 100 and Beyond: The two counting systems behind every time expression, and why 4, 7 and 9 have two readings
• Japanese Counter Words Guide: Master counting everything from pencils to rabbits
• Complete Lessons Section: Structured practice from N5 to N4

頑がん張ばって！(Ganbatte! - Good luck with your studies!)