Two counters carry the whole system
Japanese clock time is built from two counters. 時 ji marks the hour and 分 fun marks the minute, and you place the hour first, exactly as in English. Six twenty is roku-ji nijuppun. Nothing joins them, no word for past or to is needed, and no preposition appears inside the time itself. If you can count to sixty, you already own most of this topic.
What remains is pronunciation. Japanese changes sounds where consonants meet awkwardly, so certain number and counter pairs fuse. This is the same process that turns ichi plus fun into ippun. Learners who treat these as random exceptions stay slow forever; learners who drill the short list of changed forms as whole words become fluent with time in a couple of weeks.
The twelve hours
| Hour | Kanji | Romaji | Note |
|---|---|---|---|
| 1 | 一時 | Ichi-ji | Regular |
| 2 | 二時 | Ni-ji | Regular |
| 3 | 三時 | San-ji | Regular |
| 4 | 四時 | Yo-ji | Not yon-ji |
| 5 | 五時 | Go-ji | Regular |
| 6 | 六時 | Roku-ji | Regular |
| 7 | 七時 | Shichi-ji | Nana-ji only for clarity |
| 8 | 八時 | Hachi-ji | Regular |
| 9 | 九時 | Ku-ji | Not kyū-ji |
| 10 | 十時 | Jū-ji | Regular |
| 11 | 十一時 | Jūichi-ji | Regular |
| 12 | 十二時 | Jūni-ji | Regular |
| What time | 何時 | Nan-ji | Question form |
Three hours break the pattern and they are the three worth over-practising: yo-ji, shichi-ji, and ku-ji. Saying yon-ji or kyū-ji is instantly noticeable to a listener, and it is the single most common time mistake among beginners. Nana-ji is heard occasionally when a speaker wants to avoid confusion with ichi-ji over a bad phone line, but shichi-ji is the standard reading.
Japan uses the twelve-hour clock in speech and the twenty-four-hour clock in writing. People say gogo roku-ji in conversation but write 18:00 on a poster, and you read that written form as jūhachi-ji. Being able to move between the two is what makes station announcements and shop signs suddenly readable.
Minutes and the sounds that change
| Minutes | Kanji | Romaji | Change |
|---|---|---|---|
| 1 | 一分 | Ippun | Fuses to ippun |
| 2 | 二分 | Nifun | Regular |
| 3 | 三分 | Sanpun | Fun becomes pun |
| 4 | 四分 | Yonpun | Fun becomes pun |
| 5 | 五分 | Gofun | Regular |
| 6 | 六分 | Roppun | Fuses to roppun |
| 7 | 七分 | Nanafun | Regular |
| 8 | 八分 | Happun | Fuses to happun |
| 9 | 九分 | Kyūfun | Regular |
| 10 | 十分 | Juppun | Fuses to juppun |
| 20 | 二十分 | Nijuppun | Follows juppun |
| 30 | 三十分 | Sanjuppun | Follows juppun |
| 40 | 四十分 | Yonjuppun | Follows juppun |
| 50 | 五十分 | Gojuppun | Follows juppun |
| How many | 何分 | Nanpun | Fun becomes pun |
The rule underneath the table is simple. After 1, 6, 8, and 10 the number itself doubles the following consonant, giving ippun, roppun, happun, and juppun. After 3, 4, and the question word nan, the f softens to p, giving sanpun, yonpun, and nanpun. Everything else keeps plain fun: nifun, gofun, nanafun, kyūfun.
Because every multiple of ten ends in juppun, the tens are free once you have the base form. Nijuppun, sanjuppun, yonjuppun, and gojuppun all reuse the same ending, and combined minutes simply add the tens to the units: san-ji nijūgofun for three twenty-five, ku-ji yonjūroppun for nine forty-six.
Han and the times you say most
For half past, add 半 han after the hour: hachi-ji han. It is shorter than hachi-ji sanjuppun and far more common in speech, though both are correct. There is no everyday equivalent of quarter past or quarter to, so use jūgofun for fifteen minutes and yonjūgofun for forty-five. To express a few minutes before the hour, use 前 mae, as in ku-ji juppun mae.
| Japanese | Romaji | Meaning |
|---|---|---|
| 今、六時十五分です。 | Ima, roku-ji jūgofun desu. | It is six fifteen now. |
| 八時半に会いましょう。 | Hachi-ji han ni aimashō. | Let us meet at half past eight. |
| 七時半に家を出ます。 | Shichi-ji han ni ie o demasu. | I leave home at half past seven. |
| あと五分待ってください。 | Ato gofun matte kudasai. | Please wait another five minutes. |
| 十分前に着きました。 | Juppun mae ni tsukimashita. | I arrived ten minutes early. |
| ちょうど十二時です。 | Chōdo jūni-ji desu. | It is exactly twelve o'clock. |
Notice that ni appears before the verb but not after desu. Hachi-ji han ni aimashō marks the meeting time, while hachi-ji han desu simply reports it. Learners often add ni to a plain statement of the time, which sounds unfinished, or drop it before a verb, which sounds abrupt.
Morning and afternoon with gozen and gogo
Japanese speech runs on a twelve-hour clock, so you often need 午前 gozen for am and 午後 gogo for pm. Both come before the hour, which is the opposite of English: gozen jū-ji, gogo san-ji. In practice speakers drop them whenever context makes the time obvious, and use 朝 asa, 昼 hiru, 夕方 yūgata, and 夜 yoru to give a warmer sense of the part of day.
| Japanese | Romaji | Meaning |
|---|---|---|
| 午前十時に電話します。 | Gozen jū-ji ni denwa shimasu. | I will call at ten in the morning. |
| 午後三時はいかがですか? | Gogo san-ji wa ikaga desu ka? | How about three in the afternoon? |
| 午前中は空いています。 | Gozenchū wa aite imasu. | I am free during the morning. |
| 夜の八時でもいいですか? | Yoru no hachi-ji demo ii desu ka? | Would eight in the evening be all right? |
| 朝早い時間のほうがいいです。 | Asa hayai jikan no hō ga ii desu. | An early morning time would be better. |
Gozenchū is a useful word that means during the morning as a block rather than at one moment, and it is the standard way to say you are free before lunch. For the evening, yoru no hachi-ji is more natural in conversation than gogo hachi-ji, which sounds like it has been read off a document.
Asking what time it is
| Japanese | Romaji | Meaning |
|---|---|---|
| 今何時ですか? | Ima nan-ji desu ka? | What time is it now? |
| すみません、今何時か分かりますか? | Sumimasen, ima nan-ji ka wakarimasu ka? | Excuse me, do you know what time it is? |
| まだ二時前です。 | Mada ni-ji mae desu. | It is not two o'clock yet. |
| もう五時を過ぎました。 | Mō go-ji o sugimashita. | It is already past five. |
| この時計は少し遅れています。 | Kono tokei wa sukoshi okurete imasu. | This clock is a little slow. |
Ima nan-ji desu ka is correct but slightly blunt when you stop a stranger. Opening with sumimasen and asking nan-ji ka wakarimasu ka is softer, because you are asking whether they know rather than demanding the information. Expect a short reply with no desu ka, often just the bare time: san-ji han desu.
Two adverbs do a lot of work around the clock. Mada means still or not yet and pairs with a negative or with mae, while mō means already. Mada ni-ji mae desu and mō go-ji o sugimashita let you talk about time without naming an exact minute.
Arranging things with kara, made, and ni
| Japanese | Romaji | Meaning |
|---|---|---|
| 会議は何時からですか? | Kaigi wa nan-ji kara desu ka? | What time does the meeting start? |
| 九時から五時までです。 | Ku-ji kara go-ji made desu. | It is from nine until five. |
| 一時に受付で待っています。 | Ichi-ji ni uketsuke de matte imasu. | I will be waiting at reception at one. |
| 四時までに送ります。 | Yo-ji made ni okurimasu. | I will send it by four. |
| 何時がいいですか? | Nan-ji ga ii desu ka? | What time suits you? |
| 六時以降なら大丈夫です。 | Roku-ji ikō nara daijōbu desu. | After six is fine. |
| 少し遅れます。すみません。 | Sukoshi okuremasu. Sumimasen. | I will be a little late. I am sorry. |
Kara marks a starting point and made an end point, so ku-ji kara go-ji made frames a whole span. The pair that catches people out is made and made ni. Made means continuously until, so go-ji made hatarakimasu is I work until five. Made ni means by a deadline, so go-ji made ni okurimasu is I will send it before five arrives.
Ni marks the single point when something happens, and it is required with clock times: ichi-ji ni aimashō. Leaving it out makes the sentence sound like a fragment, which is a common habit among speakers of languages that mark time differently.
Goro and gurai for approximate times
Both words mean roughly, but they attach to different things. Goro follows a point in time: san-ji goro, hiru goro, getsuyōbi goro. Gurai follows a quantity or a length: san-jikan gurai, sanjuppun gurai, gosen-en gurai. If you can replace the English with around that moment, use goro; if you can replace it with about that much, use gurai. Kurai is the same word with a softer initial sound and is equally acceptable.
| Japanese | Romaji | Meaning |
|---|---|---|
| 七時ごろ帰ります。 | Shichi-ji goro kaerimasu. | I will be back around seven. |
| 昼ごろ電話してもいいですか? | Hiru goro denwa shite mo ii desu ka? | May I call around midday? |
| 二時間ぐらいかかりました。 | Ni-jikan gurai kakarimashita. | It took about two hours. |
| 三十分ぐらい遅れます。 | Sanjuppun gurai okuremasu. | I will be about thirty minutes late. |
| 十時ごろまでには終わります。 | Jū-ji goro made ni wa owarimasu. | It will be finished by around ten. |
Adding goro to a proposed time is a quiet politeness strategy. San-ji ni ikimasu commits you to three exactly, while san-ji goro ni ikimasu gives both sides a few minutes of room. Japanese speakers use this constantly, and picking it up makes your arrangements sound considerate rather than rigid.
Talking about how long with jikan
| Japanese | Romaji | Meaning |
|---|---|---|
| どのくらいかかりますか? | Dono kurai kakarimasu ka? | How long does it take? |
| 一時間かかります。 | Ichi-jikan kakarimasu. | It takes an hour. |
| 一時間半ぐらいです。 | Ichi-jikan han gurai desu. | It is about an hour and a half. |
| 毎日三十分勉強します。 | Mainichi sanjuppun benkyō shimasu. | I study for thirty minutes every day. |
| 昨日は四時間しか寝ていません。 | Kinō wa yo-jikan shika nete imasen. | I only slept four hours last night. |
時間 jikan turns hours into a length rather than a point, so ichi-ji is one o'clock but ichi-jikan is one hour. Minutes need no extra word, because fun already measures a span, which is why sanjuppun works for both half past and thirty minutes long. For hours and a half, add han: ni-jikan han is two and a half hours.
The irregular readings follow you here too. Four hours is yo-jikan and nine hours is ku-jikan, matching yo-ji and ku-ji, while seven hours is usually nana-jikan rather than shichi-jikan. To ask how long, use nan-jikan for hours or the broader dono kurai when you do not know the scale of the answer.
Reading opening hours and timetables
Signs and timetables use the twenty-four-hour clock and a compact written style, so 11:00 to 22:00 appears as 11時から22時まで and is read jūichi-ji kara nijūni-ji made. Learn a handful of surrounding words and most notices become readable: 営業時間 eigyō jikan for opening hours, 定休日 teikyūbi for the regular closing day, 発 hatsu for departure, 着 chaku for arrival, and 終電 shūden for the last train.
| Japanese | Romaji | Meaning |
|---|---|---|
| 営業時間は十一時から二十二時までです。 | Eigyō jikan wa jūichi-ji kara nijūni-ji made desu. | Opening hours are from 11:00 to 22:00. |
| 何時までやっていますか? | Nan-ji made yatte imasu ka? | How late are you open? |
| ラストオーダーは九時半です。 | Rasuto ōdā wa ku-ji han desu. | Last orders are at half past nine. |
| 定休日は水曜日です。 | Teikyūbi wa suiyōbi desu. | The regular closing day is Wednesday. |
| 次の電車は十八時四十分発です。 | Tsugi no densha wa jūhachi-ji yonjuppun hatsu desu. | The next train departs at 18:40. |
| 終電は何時ですか? | Shūden wa nan-ji desu ka? | What time is the last train? |
Nan-ji made yatte imasu ka is the phrase to use in a shop or restaurant, and it literally asks until what time you are doing business. Nan-ji kara desu ka asks the opening time. Both are short, both are polite enough with a sumimasen in front, and between them they cover almost every question you will need at a counter.
How to make clock times automatic
- Say the current time aloud every time you check a clock for one full day.
- Drill yo-ji, shichi-ji, and ku-ji until saying yon-ji feels physically wrong.
- Chant the pun forms as a block: ippun, sanpun, yonpun, roppun, happun, juppun.
- Read three real opening-hours signs and convert each one into spoken twelve-hour time.
- Rehearse one full arrangement out loud: ask the time, propose one, soften it with goro, then confirm.

