A2 Counters & Numbers 15 min read Easy

Days of the Week: The 7 Elements (Yōbi)

Memorize the elemental Kanji (Fire, Water, Wood, etc.) and add 'yōbi' to name any day of the week.

Grammar Rule in 30 Seconds

Japanese days of the week end in {曜日|ようび} and are based on the five elements plus the sun and moon.

  • All days end with the suffix {曜日|ようび}.
  • The prefix corresponds to the Sun, Moon, or one of the five elements.
  • Use the particle {は|は} to mark the day as the topic of your sentence.
Element + {曜日|ようび} + {は|は} + [Event] + {です|です}

Overview

Japanese days of the week, collectively known as yōbi 曜日(ようび), offer a uniquely structured approach to temporal nomenclature. Unlike the often arbitrary or deity-derived names in many Western languages, the Japanese system is deeply logical, linking each day to one of the Seven Luminaries (七曜 Shichiyō). These celestial bodies — the Sun, Moon, and the five classical planets (Mars, Mercury, Jupiter, Venus, Saturn) — form the bedrock of the week's naming convention.

This system is a direct descendant of ancient astrological and calendrical traditions, originating in Mesopotamia, traveling through India and China, and eventually reaching Japan.

The profound insight for learners lies in understanding this etymological framework. Each luminary was historically associated with a specific element, creating a coherent pattern for the week's names. For example, Mars is linked to fire, and the kanji for fire is () (hi).

This directly informs 火曜日(かようび) (Kayōbi), or Tuesday. This internal logic means that memorizing the days of the week transcends rote learning; you are engaging with a systematic and culturally embedded pattern. By grasping the etymological underpinnings of yōbi, you gain not only functional vocabulary but also a window into the historical and cultural influences that shape the Japanese language, fostering a more intuitive and durable learning process.

How This Grammar Works

The grammatical structure for Japanese days of the week is remarkably consistent and transparent: [Element/Luminary Kanji] + 曜日(ようび). The suffix 曜日(ようび) remains unchanged across all seven days, functioning as a definitive classifier that signifies "day of the week." This suffix is a compound itself: (よう) () translates to "luminary" or "shining body," directly referencing its astronomical roots, while () (bi) denotes "day." The invariant nature of this two-kanji suffix simplifies the learning process; your primary task is to recognize and recall the single kanji that precedes it for each specific day.
These initial kanji are direct representations of the Seven Luminaries, whose sequence of days—Sunday through Saturday—is historically derived from ancient planetary hours. In this system, each hour of the day was thought to be governed by a different luminary. The luminary ruling the first hour of a new day then determined that day's name.
This calendrical framework was largely standardized during the Hellenistic period and subsequently disseminated globally, becoming a foundational element in East Asian calendrical systems.
Consider 月曜日(げつようび) (Getsuyōbi), which literally means "Moon Day." Here, (げつ) (getsu) is the on'yomi (Sino-Japanese reading) for "moon" when used in compounds. Similarly, 水曜日(すいようび) (Suiyōbi) translates to "Water Day," with (すい) (sui) signifying "water." This consistency of 曜日(ようび) as a trailing element ensures that once you identify the initial kanji, you unambiguously understand you are referring to a day of the week. This structural regularity reduces potential ambiguity and reinforces the inherent pattern, establishing yōbi as a foundational concept for discussing schedules and temporal events.
For example:
  • 明日(あした)何曜日(なんようび) ですか。 (Ashita wa nan-yōbi desu ka?) - "What day of the week is tomorrow?"
  • 今日(きょう)水曜日(すいようび) です。 (Kyō wa Suiyōbi desu.) - "Today is Wednesday."

Formation Pattern

1
Every day of the week in Japanese is constructed by combining a specific kanji, representing a luminary or element, with the consistent suffix 曜日(ようび). The standard sequence of these days, beginning with Sunday, mirrors many Western calendar conventions, a reflection of shared calendrical history. This table provides a detailed breakdown of each day, its associated element or luminary, the specific kanji, its formal on'yomi reading, and notes on typical pitch accent patterns.
2
| Day of the Week | Kanji | Reading | Luminary/Element | On'yomi | Pitch Accent | Notes |
3
|:----------------|:------|:--------|:-----------------|:----------|:-------------|:------|
4
| Sunday | 日曜日(にちようび) | Nichiyōbi | Sun ((にち)) | nichi | NI-chiyōbi (H-L-L-L) | The (にち) here means "sun" or "day." This day typically marks the start of the week on Japanese calendars. |
5
| Monday | 月曜日(げつようび) | Getsuyōbi | Moon ((げつ)) | getsu | GE-tsuyōbi (H-L-L-L) | The (げつ) kanji specifically represents the moon. This is its on'yomi reading in compounds. |
6
| Tuesday | 火曜日(かようび) | Kayōbi | Fire (()) | ka | KA-yōbi (H-L-L-L) | () for fire. Historically associated with Mars, often called the "fire planet." |
7
| Wednesday | 水曜日(すいようび) | Suiyōbi | Water ((すい)) | sui | SU-iyōbi (H-L-L-L) | (すい) for water. Connected to Mercury, sometimes referred to as the "water planet" in ancient lore. |
8
| Thursday | 木曜日(もくようび) | Mokuyōbi | Wood/Tree ((もく)) | moku | MO-kuyōbi (H-L-L-L) | (もく) for wood or tree. Associated with Jupiter, often seen as a protective, growth-oriented celestial body. |
9
| Friday | 金曜日(きんようび) | Kinyōbi | Gold/Metal ((きん)) | kin | KI-nyōbi (H-L-L-L) | (きん) for gold or metal. Linked to Venus, the shining, golden planet. |
10
| Saturday | 土曜日(どようび) | Doyōbi | Earth/Soil (()) | do | DO-yōbi (H-L-L-L) | () for earth or soil. Associated with Saturn, a distant, earthy planet.
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In less formal spoken Japanese, particularly when seeking brevity, the final (bi) component of 曜日(ようび) is frequently omitted. This results in abbreviated forms such as 月曜(げつよう) (Getsuyō) for Monday or 金曜(きんよう) (Kinyō) for Friday. These shortened forms maintain clarity in casual conversations. Furthermore, in informal written contexts like text messages, digital calendars, or personal schedules, it is very common to see even further abbreviations, using only the initial kanji (e.g., {月} for Monday, {火} for Tuesday). While efficient for visual shorthand, these single-kanji abbreviations are generally not used in spoken language to refer to the full day name.
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For example:
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会議(かいぎ)来週(らいしゅう)水曜(すいよう) です。 (Kaigi wa raishū no Suiyō desu.) - "The meeting is next Wednesday." (Casual shortening in speech)
14
〇月〇日(まるがつまるにち) ({土}) (Marugatsu Marunichi (Do)) - "Month/Day (Saturday)" (Single kanji abbreviation, typically written)
15
To inquire "What day of the week is it?" you utilize the interrogative 何曜日(なんようび) (nan-yōbi). This phrase literally asks "what luminary day." As with most Japanese questions, the particle (ka) is typically appended at the end to indicate a query.
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来週(らいしゅう)イベント(イベント)何曜日(なんようび) ですか。 (Raishū no ibento wa nan-yōbi desu ka?) - "What day of the week is next week's event?"

When To Use It

Effective use of Japanese days of the week often involves appropriate particle usage, particularly (ni) to specify the temporal context of an event. Understanding these nuances allows for precise communication of when actions occur.
1. Marking Specific Days with (ni):
When an event or action occurs on a particular named day of the week, the particle (ni) is typically attached directly after the day. This particle explicitly designates the day as the specific point in time for the action, akin to "on" in English. This usage is a consistent marker of temporal specificity in Japanese sentences.
  • (わたし)毎週(まいしゅう) 月曜日(げつようび) ジム(ジム)()きます。 (Watashi wa maishū Getsuyōbi ni jimu ni ikimasu.) - "I go to the gym every Monday."
  • (かれ)金曜日(きんようび) レポート(レポート)提出(ていしゅつ)しました。 (Kare wa Kinyōbi ni repōto o teishutsu shimashita.) - "He submitted the report on Friday."
  • 予約(よやく)再来週(さらいしゅう)火曜日(かようび) 変更(へんこう)されました。 (Yoyaku wa saraishū no Kayōbi ni henkō saremashita.) - "The reservation was changed to the Tuesday after next."
2. Omitting (ni) for General Time Markers or Proximity:
The particle (ni) is often omitted when the day of the week functions as a general time marker rather than emphasizing a precise point, or when combined with words that already convey temporal scope or repetition. These words include "every" (maishū 毎週(まいしゅう)), "this" (konshū 今週(こんしゅう)), "next" (raishū 来週(らいしゅう)), or "last" (senshū 先週(せんしゅう)). In such cases, the inherent temporal information provided by these prefixes or adverbs makes the additional specificity of (ni) redundant.
These expressions denote broader temporal frames.
  • 今週(こんしゅう)土曜日(どようび)用事(ようじ) があります。 (Konshū no Doyōbi wa yōji ga arimasu.) - "I have plans this Saturday." (Here, konshū already specifies "this week's," making ni unnecessary.)
  • 来週(らいしゅう) 月曜日(げつようび)会議(かいぎ)(はじ)まります。 (Raishū Getsuyōbi, kaigi ga hajimarimasu.) - "Next Monday, the meeting will start." (Raishū provides sufficient temporal context.)
  • 毎週(まいしゅう) 日曜日(にちようび)家族(かぞく)()ごします。 (Maishū Nichiyōbi wa kazoku to sugoshimasu.) - "I spend every Sunday with my family." (Maishū already indicates repetition, rendering ni superfluous.)
3. Using 何曜日(なんようび) for Questions:
As previously highlighted, 何曜日(なんようび) is the standard interrogative used to ask "What day of the week?" It specifically probes for one of the seven days, distinguishing it from questions about specific dates or months.
  • パーティー(パーティー)何曜日(なんようび) ですか。 (Pātī wa nan-yōbi desu ka?) - "What day of the week is the party?"
4. Calendar and Schedule Representation:
In printed materials such as calendars, bus schedules, store operating hours, or television listings, days of the week are very commonly abbreviated. Often, only the initial elemental kanji is used, frequently enclosed in parentheses (e.g., (月), (火)). This highly efficient visual shorthand assumes the reader's familiarity with the convention.
For instance, a schedule might show 営業日: (月)~(金) (Eigyōbi: (Getsu) ~ (Kin)) meaning "Business days: Monday to Friday."
  • 診療時間(しんりょうじかん): ({水}) 休診(きゅうしん) (Shinryō jikan: (Sui) Kyūshin) - "Consultation hours: (Wednesday) Closed."
Mastering these conventions allows you to interpret schedules accurately and utilize days of the week appropriately in both spoken and written Japanese, ensuring precise temporal communication.

Common Mistakes

Japanese learners frequently encounter specific challenges when using the days of the week. Recognizing these common errors and understanding their underlying causes can significantly enhance your accuracy and prevent miscommunication.
1. Confusing 火曜日(かようび) (Tuesday) and 木曜日(もくようび) (Thursday):
This is perhaps the most prevalent error. The kanji () (fire) and (もく) (wood/tree) bear a superficial resemblance, especially in less clear fonts or handwritten contexts. Both also share an on'yomi beginning with a 'K' sound for their initial syllable. The critical distinction lies in their form and stroke count. () (fire) has four strokes and often appears more open or dynamic, evoking flames. In contrast, (もく) (wood/tree) also has four strokes but features a clear central vertical stroke with a horizontal line crossing its top, visually representing a tree trunk with branches. A useful mnemonic is that Kayōbi (Fire) precedes Mokuyōbi (Wood) in the week, and metaphorically, "fire consumes wood." Furthermore, visually isolating the distinct shapes of as a flame and as a tree trunk can solidify their recognition.
2. Misusing (ni) with Relative Time Words:
A fundamental rule for the particle (ni) is that it generally does not attach to words that inherently define a temporal window or repetition. These include relative time expressions such as 今日(きょう) (kyō, today), 明日(あした) (ashita, tomorrow), 昨日(きのう) (kinō, yesterday), 今週(こんしゅう) (konshū, this week), 来月(らいげつ) (raigetsu, next month), or 毎週(まいしゅう) (maishū, every week). Using (ni) with these terms is grammatically redundant and sounds unnatural to native speakers because these words already provide sufficient temporal context.
  • Incorrect: 明日()(もの)()きます。 (Ashita ni kaimono ni ikimasu.)
  • Correct: 明日(あした) ()(もの)()きます。 (Ashita kaimono ni ikimasu.) - "I'll go shopping tomorrow."
Crucially, remember that specific named days of the week (e.g., Getsuyōbi, Kinyōbi) do take (ni) when marking the time of an event. This distinction between specific days and broader, relative temporal expressions is essential for accurate particle usage.
3. Confusing 何曜日(なんようび) (nan-yōbi) with 何日(なんにち) (nan-nichi) or 何月(なんがつ) (nan-gatsu):
Each interrogative seeks distinct information. 何曜日(なんようび) specifically asks "What day of the week?" (expecting an answer like Monday, Tuesday). In contrast, 何日(なんにち) asks "What date?" or "What day of the month?" (expecting a numeric date, e.g., the 1st, the 15th), and 何月(なんがつ) asks "What month?" Using the wrong interrogative demonstrates a fundamental misunderstanding of the desired information.
  • If you ask 今日(きょう)何日(なんにち) ですか。 (Kyō wa nan-nichi desu ka?), the appropriate answer is a date (e.g., 二十日(はつか) (hatsuka), the 20th), not a day of the week. Pay close attention to the difference between in yōbi and nichi in nannichi.
4. Incorrect Pitch Accent or Pronunciation of 日曜日(にちようび):
While seemingly straightforward, 日曜日(にちようび) (Nichiyōbi) is sometimes mispronounced by learners who might elide the chi sound or shorten the long ō vowel. The correct pronunciation maintains distinct syllables with the correct pitch: Ni-chi-yō-bi (High-Low-Low-Low). The long ō sound is critical, and articulating the chi clearly is important. Active listening to native speakers helps internalize the natural rhythm and pitch.
5. Over-abbreviating in Formal or Spoken Contexts:
Although abbreviations like {月} for Monday are perfectly acceptable and common in written schedules or text messages, their use in formal spoken Japanese or in situations demanding full clarity and politeness is inappropriate. In such contexts, consistently use the full form 月曜日(げつようび) or at least the slightly shortened 月曜(げつよう). Employing single-kanji abbreviations in formal speech can convey an impression of excessive informality or even disrespect.

Real Conversations

Beyond textbook examples, understanding how yōbi is used in authentic, modern Japanese communication reveals its flexibility. Native speakers adapt these terms for efficiency and context, seamlessly shifting between formal and informal usage depending on the situation and interlocutor.

1. Casual Shortening for Brevity:

One of the most common spoken adaptations involves dropping the final (bi) from 曜日(ようび). This yields forms like 月曜(げつよう) (Getsuyō), 火曜(かよう) (Kayō), and so forth. These shortened forms are widely accepted in casual conversation among friends, family, or colleagues in relaxed settings where mutual understanding is assumed. It streamlines speech without sacrificing clarity.

- 今週(こんしゅう)金曜(きんよう)()みに ()かない? (Konshū no Kinyō ni nomi ni ikanai?) - "Want to go for drinks this Friday?" (This is a common casual invitation, using the shortened form.)

- 来週(らいしゅう)水曜(すいよう)()いてる? (Raishū no Suiyō wa aiteru?) - "Are you free next Wednesday?" (A direct, casual inquiry about availability.)

2. Texting and Social Media Shorthand:

In digital written communication, particularly text messages and social media posts, even more extreme abbreviations are customary and expected. Often, only the initial kanji for the day is used. Sometimes it stands alone, and other times it may be accompanied by a single parenthesis (e.g., {月)}). This highly efficient visual shorthand is readily understood due to context and reflects a broader trend toward conciseness in digital interactions.

- 会議(かいぎ) ({木}) 10:00~ (Kaigi (Moku) 10:00~) - "Meeting (Thursday) 10:00~" (A typical shorthand for a meeting reminder in a message.)

- 今日(きょう)シフト(シフト)、({土}) と ({日}) は (だれ)()わってくれる (ひと) いるかなー? (Kyō no shifuto, (Do) to (Nichi) wa dare ka kawatte kureru hito iru kana~?) - "For today's shift, (for) Saturday and Sunday, is there anyone who can cover?" (A very casual inquiry in a chat, using single kanji abbreviations for multiple days.)

3. Scheduling and Confirmation in Different Registers:

When arranging or confirming plans, the choice between full and shortened forms, and thus the level of formality, depends on the social context. In business environments or formal interactions, the full 曜日(ようび) form is generally preferred to ensure utmost clarity and avoid any impression of informality that might be deemed inappropriate.

- 佐藤(さとう)さん、来週(らいしゅう)火曜日(かようび)()()わせ は 可能(かのう) でしょうか。 (Satō-san, raishū no Kayōbi, uchi awase wa kanō deshō ka?) - "Mr./Ms. Satō, would a meeting next Tuesday be possible?" (Appropriate for a formal work email or conversation, using the full form.)

- 集合時間(しゅうごうじかん)土曜(どよう) の 13 () です。 (Shūgō jikan wa Doyō no 13-ji desu.) - "The meeting time is Saturday at 1 PM." (This uses the slightly shortened Doyō, acceptable among colleagues or peers where a degree of familiarity exists.)

These examples underscore the dynamic nature of yōbi usage. Your ability to recognize and appropriately employ these variations will significantly enhance your capacity to interact naturally and effectively with Japanese speakers in a diverse range of real-world scenarios.

Quick FAQ

This section addresses common questions learners frequently pose regarding yōbi and other related temporal expressions, providing clarifying details and nuanced insights into their usage.
Q: Why does the week often start on Sunday in Japan if Saturday and Sunday are the weekend?

Calendars in Japan commonly display Sunday (日曜日(にちようび)) as the first day of the week. This convention aligns with traditional Western and various international calendar standards primarily for visual layout purposes. It is a standard way to organize a calendar grid. The concept of the "weekend" (週末(しゅうまつ), literally "week's end") remains Saturday and Sunday, signifying non-working days for most industries and individuals, regardless of the calendar's designated start day. Some business-oriented calendars might begin with Monday to emphasize the start of the work week, but this does not alter the underlying calendrical tradition.

Q: How do yōbi differ from other "day" words like () (hi) or () (ka)?

曜日(ようび) specifically refers to the seven-day cycle of the week (e.g., Monday, Tuesday). In contrast, () (hi or ka depending on context) is a more general term for "day," "sun," or a specific day within a date. For instance, 休日(きゅうじつ) (kyūjitsu, holiday) utilizes the kanji (じつ) (jitsu) for day, and 何日(なんにち) (nan-nichi) for "what date" uses (にち) (nichi). Thus, while yōbi incorporates {日} as part of its suffix, the complete compound distinguishes it from general or date-specific references to "day." For example, "Mother's Day" is 母の日(ははのひ) (Haha no hi), where () designates a particular, annually occurring named day, not a recurring day of the week.

Q: Is there a specific word for "weekend"?

Yes, the standard and universally understood term is 週末(しゅうまつ) (shūmatsu). This literally translates to "week's end," derived from (しゅう) (week) and (まつ) (end). It is frequently used in phrases such as 週末(しゅうまつ)予定(よてい) (shūmatsu no yotei, weekend plans) or ()週末(しゅうまつ) を! (Yoi shūmatsu o!, Have a good weekend!). This term is appropriate and common in both formal and informal communication.

Q: Can I use the (ni) particle with 週末(しゅうまつ)?

Yes, you can. The construction 週末(しゅうまつ) is both common and grammatically correct, functioning similarly to how (ni) is used with specific days of the week. For example, 週末(しゅうまつ)旅行(りょこう)()きます。 (Shūmatsu ni ryokō ni ikimasu.) - "I will go on a trip on the weekend." However, mirroring the rule for specific days, if 週末(しゅうまつ) is combined with other temporal qualifiers like この (kono, this) or (rai, next), the (ni) particle is often omitted. For example, この(この) 週末(しゅうまつ) (kono shūmatsu, this weekend) frequently does not take ni because kono already specifies the temporal proximity.

Q: Are there any alternatives for "every day" besides 毎日(まいにち)?

While 毎日(まいにち) (mainichi) is the most common, direct, and natural word for "every day," conceptually you could construct phrases using other grammar. However, for expressing regular, daily occurrences, 毎日(まいにち) is almost universally preferred due to its conciseness and naturalness. It inherently covers the concept of "every day of the week" without needing a specific yōbi construction. Attempting to build alternatives using yōbi would generally sound clunky and unnatural compared to the efficiency of mainichi.

Q: Do these elemental names apply to other contexts in Japanese?

Absolutely. The five elements (() hi/fire, (みず) mizu/water, () ki/wood, (かね) kane/metal, (つち) tsuchi/earth) are fundamental concepts in many facets of Japanese culture and language, stemming from the ancient Chinese Five Elements theory (五行 Gogyō). You will encounter these elements in various compound words, place names, personal names, and traditional arts. This pervasive presence reinforces the interconnectedness of yōbi with broader linguistic and cultural patterns. Understanding this elemental system provides a deeper appreciation for the logical underpinnings present throughout the Japanese language.

Days of the Week

Day Kanji Reading
Monday
{月曜日|げつようび}
Getsuyōbi
Tuesday
{火曜日|かようび}
Kayōbi
Wednesday
{水曜日|すいようび}
Suiyōbi
Thursday
{木曜日|もくようび}
Mokuyōbi
Friday
{金曜日|きんようび}
Kinyōbi
Saturday
{土曜日|どようび}
Doyōbi
Sunday
{日曜日|にちようび}
Nichiyōbi

Meanings

The system used to identify the seven days of the week, derived from celestial bodies and elements.

1

Naming Days

Identifying a specific day of the week.

“{今日|きょう}は{火曜日|かようび}です。”

“{明日|あした}は{水曜日|すいようび}です。”

Reference Table

Reference table for Days of the Week: The 7 Elements (Yōbi)
Form Structure Example
Affirmative
Day + {は|は} + {です|です}
{今日|きょう}は{月曜日|げつようび}です。
Negative
Day + {は|は} + {じゃありません|じゃありません}
{今日|きょう}は{月曜日|げつようび}じゃありません。
Question
Day + {は|は} + {何曜日|なんようび}ですか?
{明日|あした}は{何曜日|なんようび}ですか?
Past
Day + {は|は} + {でした|でした}
{昨日|きのう}は{日曜日|にちようび}でした。

Formality Spectrum

Formal
{今日|きょう}は{何曜日|なんようび}でいらっしゃいますか?

{今日|きょう}は{何曜日|なんようび}でいらっしゃいますか? (Asking for the day)

Neutral
{今日|きょう}は{何曜日|なんようび}ですか?

{今日|きょう}は{何曜日|なんようび}ですか? (Asking for the day)

Informal
{今日|きょう}、{何曜日|なんようび}?

{今日|きょう}、{何曜日|なんようび}? (Asking for the day)

Slang
{今日|きょう}、{何|なん}ようび?

{今日|きょう}、{何|なん}ようび? (Asking for the day)

The Seven Luminaries

{曜日|ようび}

Elements

  • {火|か} Fire
  • {水|すい} Water
  • {木|もく} Wood
  • {金|きん} Metal
  • {土|ど} Earth

Sky

  • {日|にち} Sun
  • {月|げつ} Moon

Examples by Level

1

{月曜日|げつようび}です。

It is Monday.

2

{今日|きょう}は{日曜日|にちようび}です。

Today is Sunday.

3

{金曜日|きんようび}です。

It is Friday.

4

{水曜日|すいようび}です。

It is Wednesday.

1

{明日|あした}は{何曜日|なんようび}ですか?

What day is tomorrow?

2

{火曜日|かようび}に{会|あ}いましょう。

Let's meet on Tuesday.

3

{木曜日|もくようび}は{忙|いそが}しいです。

Thursday is busy.

4

{土曜日|どようび}は{休|やす}みです。

Saturday is a day off.

1

{毎週|まいしゅう}{水曜日|すいようび}に{日本語|にほんご}の{クラス|くらす}があります。

I have a Japanese class every Wednesday.

2

{来週|らいしゅう}の{月曜日|げつようび}は{祝日|しゅくじつ}です。

Next Monday is a public holiday.

3

{金曜日|きんようび}の{夜|よる}は{映画|えいが}を{見|み}ます。

I will watch a movie on Friday night.

4

{日曜日|にちようび}は{家|いえ}でゆっくりします。

I will relax at home on Sunday.

1

{会議|かいぎ}の{日程|にってい}を{木曜日|もくようび}に{変更|へんこう}してもいいですか?

Can we change the meeting schedule to Thursday?

2

{土曜日|どようび}の{午前中|ごぜんちゅう}は{混雑|こんざつ}します。

It gets crowded on Saturday morning.

3

{火曜日|かようび}までに{報告書|ほうこくしょ}を{出|だ}してください。

Please submit the report by Tuesday.

4

{水曜日|すいようび}の{予定|よてい}を{確認|かくにん}します。

I will confirm the Wednesday schedule.

1

{金曜日|きんようび}の{夕方|ゆうがた}から{週末|しゅうまつ}の{雰囲気|ふんいき}が{漂|ただよ}い{始|はじ}めます。

The weekend atmosphere starts to drift in from Friday evening.

2

{月曜日|げつようび}の{憂鬱|ゆううつ}さを{解消|かいしょう}する{方法|ほうほう}を{探|さが}しています。

I am looking for a way to resolve Monday blues.

3

{木曜日|もくようび}は{週|しゅう}の{中盤|ちゅうばん}として{重要|じゅうよう}な{日|ひ}です。

Thursday is an important day as the middle of the week.

4

{日曜日|にちようび}の{静寂|せいじゃく}が{好|す|}きです。

I like the silence of Sunday.

1

{土曜日|どようび}の{夜|よる}を{謳歌|おうか}する{人々|ひとびと}で{街|まち}は{賑|にぎ}わっています。

The city is bustling with people enjoying Saturday night.

2

{火曜日|かようび}の{朝|あさ}の{静|しず}けさは{格別|かくべつ}です。

The quiet of Tuesday morning is exceptional.

3

{水曜日|すいようび}の{午後|ごご}、{仕事|しごと}の{合間|あいま}に{一息|ひといき}つきます。

On Wednesday afternoon, I take a break between work.

4

{金曜日|きんようび}の{夜|よる}の{解放感|かいほうかん}は{何|なに}にも{代|か|}えられません。

The sense of liberation on Friday night is irreplaceable.

Easily Confused

Days of the Week: The 7 Elements (Yōbi) vs Date vs Day of the Week

Learners mix up 'Monday' with 'the 1st'.

Common Mistakes

{月|げつ}です

{月曜日|げつようび}です

You must include the suffix.

{火|か}は{何曜日|なんようび}?

{今日|きょう}は{何曜日|なんようび}?

Don't confuse the element with the day.

{月曜日|げつようび}に{行|い}きます

{月曜日|げつようび}に{行|い}きます (Actually correct, but watch for particle usage)

Particles like 'ni' are often misused.

{日|にち}曜日

{日曜日|にちようび}

Ensure the kanji is correct.

{明日|あした}は{月|げつ}です

{明日|あした}は{月曜日|げつようび}です

Missing suffix.

{何|なん}曜日ですか

{何曜日|なんようび}ですか

Reading error.

{金曜日|きんようび}は{何|なに}ですか

{今日|きょう}は{何曜日|なんようび}ですか

Incorrect question structure.

{月曜日|げつようび}の{日|ひ}

{月曜日|げつようび}

Redundant 'day'.

{曜日|ようび}が{何|なに}ですか

{何曜日|なんようび}ですか

Grammar error.

{月曜日|げつようび}に{会|あ}う

{月曜日|げつようび}に{会|あ}います

Register mismatch.

Sentence Patterns

{今日|きょう}は___です。

___は{何曜日|なんようび}ですか?

私は___に{働|はたら}きます。

___は{忙|いそが}しいです。

Real World Usage

Texting very common

{金曜日|きんようび}、{暇|ひま}?

Business very common

{月曜日|げつようび}に{会議|かいぎ}があります。

Travel common

{土曜日|どようび}は{営業|えいぎょう}しています。

Social Media common

{日曜日|にちようび}の{朝|あさ}!

Food Delivery occasional

{水曜日|すいようび}の{割引|わりびき}。

Job Interview common

{火曜日|かようび}に{面接|めんせつ}を{希望|きぼう}します。

🎯

Calendar Abbreviation

On Japanese calendars, days are often just one character in parentheses: ({月}), ({火}), ({水}).
💬

Blue Monday

Japan uses 'Blue Monday' logic too. You might hear people say they are feeling depressed because it's {月曜日}.
⚠️

Don't say 'Day' twice

Don't say 'Kayōbi day'. The 'bi' already means day.

Smart Tips

Use a mnemonic for the elements.

I keep forgetting Tuesday. Tuesday is Fire (Ka), so I remember it now.

Always write the full kanji.

I write {月|げつ}. I write {月曜日|げつようび}.

Focus on the long 'o' sound.

yobi yōbi

Use the particle {に|に} for specific days.

{月曜日|げつようび}会います。 {月曜日|げつようび}に{会|あ}います。

Pronunciation

yō-bi

Long Vowels

The 'o' in {ようび} is long.

Question

Rising at the end

Indicates a question

Memorize It

Mnemonic

Think of the elements: Fire (Tuesday), Water (Wednesday), Wood (Thursday), Metal (Friday), Earth (Saturday).

Visual Association

Imagine a calendar where each day is a different element: a burning fire on Tuesday, a flowing river on Wednesday, a tall tree on Thursday, a gold coin on Friday, and a pile of dirt on Saturday.

Rhyme

Getsu, Ka, Sui, Moku, Kin, Do, Nichi, the week is done, it's quite a hitch!

Story

On Monday (Getsu), I look at the Moon. On Tuesday (Ka), I start a fire. On Wednesday (Sui), I drink water. On Thursday (Moku), I climb a tree. On Friday (Kin), I find gold. On Saturday (Do), I play in the dirt. On Sunday (Nichi), I watch the Sun.

Word Web

{月曜日|げつようび}{火曜日|かようび}{水曜日|すいようび}{木曜日|もくようび}{金曜日|きんようび}{土曜日|どようび}{日曜日|にちようび}

Challenge

Write down your schedule for the next 7 days using the Japanese names for each day.

Cultural Notes

The week is often used for business scheduling. Sunday is the start of the week on many calendars.

Derived from the Chinese system of seven luminaries.

Conversation Starters

{今日|きょう}は{何曜日|なんようび}ですか?

{週末|しゅうまつ}は{何曜日|なんようび}と{何曜日|なんようび}ですか?

{一番|いちばん}{好|す|}きな{曜日|ようび}は{何曜日|なんようび}ですか?

{月曜日|げつようび}は{忙|いそが}しいですか?

Journal Prompts

Describe your typical Monday.
What do you do on weekends?
Compare your busiest day with your most relaxed day.
How does the Japanese week structure differ from your country?

Common Mistakes

Incorrect

Correct


Incorrect

Correct


Incorrect

Correct


Incorrect

Correct

Test Yourself

Fill in the blank.

{今日|きょう}は{月曜日|げつようび}です。{明日|あした}は___です。

✓ Correct! ✗ Not quite. Correct answer: a
Monday leads to Tuesday.
Which is Sunday? Multiple Choice

Which is Sunday?

✓ Correct! ✗ Not quite. Correct answer: b
Nichiyōbi is Sunday.
Fix the sentence. Error Correction

Find and fix the mistake:

{今日|きょう}は{月|げつ}です。

✓ Correct! ✗ Not quite. Correct answer: a
Needs the full suffix.
Reorder the sentence. Sentence Reorder

Arrange the words in the correct order:

All words placed

Click words above to build the sentence

✓ Correct! ✗ Not quite. Correct answer: a
Standard question order.
Translate to Japanese. Translation

Today is Friday.

Answer starts with: a...

✓ Correct! ✗ Not quite. Correct answer: a
Friday is Kinyōbi.
Match the day. Match Pairs

Match each item on the left with its pair on the right:

✓ Correct! ✗ Not quite. Correct answer: b
Kayōbi is Tuesday.
What is the day after Friday? Conjugation Drill

Friday + 1 day?

✓ Correct! ✗ Not quite. Correct answer: a
Saturday follows Friday.
Complete the dialogue. Dialogue Completion

A: {今日|きょう}は{何曜日|なんようび}ですか? B: ___

✓ Correct! ✗ Not quite. Correct answer: a
Direct answer.

Score: /8

Practice Exercises

8 exercises
Fill in the blank.

{今日|きょう}は{月曜日|げつようび}です。{明日|あした}は___です。

✓ Correct! ✗ Not quite. Correct answer: a
Monday leads to Tuesday.
Which is Sunday? Multiple Choice

Which is Sunday?

✓ Correct! ✗ Not quite. Correct answer: b
Nichiyōbi is Sunday.
Fix the sentence. Error Correction

Find and fix the mistake:

{今日|きょう}は{月|げつ}です。

✓ Correct! ✗ Not quite. Correct answer: a
Needs the full suffix.
Reorder the sentence. Sentence Reorder

{曜日|ようび} / {何|なん} / ですか / {今日|きょう} / は

✓ Correct! ✗ Not quite. Correct answer: a
Standard question order.
Translate to Japanese. Translation

Today is Friday.

✓ Correct! ✗ Not quite. Correct answer: a
Friday is Kinyōbi.
Match the day. Match Pairs

Match {火曜日|かようび} to English.

✓ Correct! ✗ Not quite. Correct answer: b
Kayōbi is Tuesday.
What is the day after Friday? Conjugation Drill

Friday + 1 day?

✓ Correct! ✗ Not quite. Correct answer: a
Saturday follows Friday.
Complete the dialogue. Dialogue Completion

A: {今日|きょう}は{何曜日|なんようび}ですか? B: ___

✓ Correct! ✗ Not quite. Correct answer: a
Direct answer.

Score: /8

Practice Bank

10 exercises
Match the element to the day. Match Pairs

Match these up:

✓ Correct! ✗ Not quite. Correct answer: ["Fire: Tuesday","Water: Wednesday","Gold: Friday","Tree: Thursday"]
Unscramble the sentence. Sentence Reorder

desu / wa / Doyōbi / yasumi / .

✓ Correct! ✗ Not quite. Correct answer: Doyōbi wa yasumi desu.
Translate to Japanese. Translation

It is Sunday.

✓ Correct! ✗ Not quite. Correct answer: Nichiyōbi desu.
Complete the sequence. Fill in the Blank

Getsuyōbi, ___, Suiyōbi.

✓ Correct! ✗ Not quite. Correct answer: Kayōbi
Which day is 'Water Day'? Multiple Choice

Select the correct Japanese word.

✓ Correct! ✗ Not quite. Correct answer: Suiyōbi
Fix the particle error. Error Correction

Nichiyōbi wa gakkō ni ikimasu.

✓ Correct! ✗ Not quite. Correct answer: Nichiyōbi ni gakkō ni ikimasu.
Match Kanji to Reading. Match Pairs

Connect them.

✓ Correct! ✗ Not quite. Correct answer: ["{\u571f}: Do","{\u91d1}: Kin","{\u6728}: Moku","{\u706b}: Ka"]
What day is the interview? Fill in the Blank

The interview is on Friday ({___}).

✓ Correct! ✗ Not quite. Correct answer: Kinyōbi
Translate 'What day is it?' Translation

Translate the question.

✓ Correct! ✗ Not quite. Correct answer: Nan-yōbi desu ka?
Identify the 'Tree' day. Multiple Choice

Which day contains the Tree kanji?

✓ Correct! ✗ Not quite. Correct answer: Mokuyōbi

Score: /10

FAQ (8)

It is a suffix meaning 'day of the luminary'.

No, {月|げつ} is just the moon. {月曜日|げつようび} is Monday.

Use '{今日|きょう}は{何曜日|なんようび}ですか?'.

Yes, constantly for scheduling.

Yes, it is essential for reading.

No, you must use the full form.

Use '{月曜日|げつようび}に'.

No, dates are specific to the month.

Scaffolded Practice

1

1

2

2

3

3

4

4

Mastery Progress

Needs Practice

Improving

Strong

Mastered

In Other Languages

Spanish partial

Lunes, Martes...

Japanese uses a consistent suffix.

French partial

Lundi, Mardi...

Japanese is based on elements.

German partial

Montag, Dienstag...

Japanese uses celestial bodies.

Japanese high

{曜日|ようび}

None.

Arabic low

Al-Ahad, Al-Ithnayn...

Japanese uses names.

Chinese partial

Xingqi yi, Xingqi er...

Japanese uses elements.

Learning Path

Prerequisites

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